1
UI - 11905796
AU - Dimitrov BD
TI -
Uncommon cancers are also important.
SO - Lancet Oncol 2001 Feb;2(2):71-2
2
UI - 11498476
AU - Mudur G
TI -
Indian doctors defend "unethical" anticancer drug trial.
SO - BMJ 2001 Aug 11;323(7308):299
3
UI - 11498549
AU - Bagla P; Marshall E
TI -
Clinical research. Hopkins reviews investment in Indian cancer drug
trial.
SO - Science 2001 Aug 10;293(5532):1024
4
UI - 11577215
AU - Bagla P
TI -
Clinical research. India acts on flawed cancer drug trials.
SO - Science 2001 Sep 28;293(5539):2371-3
5
UI - 11860227
AU - Giannelli G; Milillo L; Marinosci F; Muzio LL; Serpico R; Antonaci S
TI -
Altered expression of integrins and basement membrane proteins in
malignant and pre-malignant lesions of oral mucosa.
SO - J Biol Regul Homeost Agents 2001 Oct-Dec;15(4):375-80
AD - Department of Internal Medicine, Immunology and Infectious Diseases,
University of Bari Medical School, Italy. g.gianelli@intmed.uniba.it
Integrins are transmembrane receptors that regulate cell-cell and
cell-extracellular matrix (ECM) contact. In epithelial tissues, they
interact with ECM components of the basement membrane (BM) to maintain
the homeostasis and the architecture of the tissue. This interaction
controls several cell functions such as adhesion, migration,
proliferation, differentiation, and therefore has a key role in cancer
development and metastasis. We studied the expression of integrins and
ECM components of the BM by immunohistochemistry in frozen specimens of
malignant squamous cell carcinoma (SCC), pre-malignant lesions of the
oral mucosa (leucoplakia) and oral lichen planus. In invasive SCC, we
observed altered polarity and distribution of alpha2beta1, alpha6beta4
and alpha3beta1 integrins, whereas in the in situ carcinoma alpha6beta4
and alpha3beta1 patterns only were altered. Immunostaining for ECM
components such as Laminin-1 (Ln-1), Ln-5, and Collagen IV (Coll IV) was
discontinuous and interrupted in invasive SCC, whereas it was normal in
the in situ carcinoma. In both pre-malignant lesions and lichen planus
specimens, integrins were expressed in a polarized manner in the
presence of a normal BM, whereas were abnormally distributed in those
tissues with altered staining patterns of the ECM components. In
conclusion, we suggest that abnormal re-distribution of alpha3beta1 and
alpha6beta4 integrins and expression of ECM components such as Ln-5
could play an important role in SCC invasion and metastasis.
6
UI - 12076325
AU - Kao SY; Tu HF; Chang KW; Chang CS; Yang CC; Lin SC
TI -
The retinoic acid receptor-beta (RAR-beta) mRNA expression in the oral
squamous cell carcinoma associated with betel quid use.
SO - J Oral Pathol Med 2002 Apr;31(4):220-6
AD - Department of Dentistry, Oral Maxillofacial Surgery, Veterans General
Hospital-Taipei/School of Dentistry, National Yang-Ming University,
Taipei, Taiwan, R.O.C.
BACKGROUND: Within the abundant retinoids nuclear receptors, abnormally
low expression of the RAR-beta has been shown to contribute to
neoplastic progression in oral epithelium in western countries.
Distinctly different risk factors contributing to oral squamous cell
carcinoma (OSCC) in epidemiologically different societies denote the
value of exploring the role of RAR-beta expression in OSCC associated
with betel quid (BQ) use in our society. METHODS: We examined the
cellular expression of RAR-beta using in situ hybridization (ISH)
analysis on 38 pairs of surgical specimens of primary OSCC and
non-cancerous matched tissues (NCMT) to correlate with their
clinico-pathological features including age, sites of tumor, habit of BQ
use, stage, size of primary tumor, lymph node metastasis,
differentiation. RESULTS: Of all cases analyzed, BQ users were
significantly younger than non-BQ users (51.2 +/- 2.1 vs. 60.2 +/- 2.6,
P = 0.01). 52% OSCC of BQ users (13/25) and 23% OSCC of non-BQ users
(3/13) exhibited the absence of RAR-beta expression. In 17
paired-samples from buccal mucosa (BM), most NCMT and less than half of
OSCC exhibited RAR-beta expression (16/17, 94% vs. 8/17, 47%, P =
0.003). The RAR-beta expression was seen in the vast majority of the
well-differentiated OSCC and in less than half of the moderately
differentiated OSCC only (15/20, 75% vs. 7/18, 39%, P = 0.03).
CONCLUSION: A correlation between the loss of RAR-beta expression and
more advanced histopathological grade tumors was observed. This study
also suggests that the loss of RAR-beta expression is significant in BM
OSCC, which preferentially occurs in BQ users.
7
UI - 12076326
AU - Okamoto M; Nishimine M; Kishi M; Kirita T; Sugimura M; Nakamura M;
TI -
Konishi N
Prediction of delayed neck metastasis in patients with stage I/II
squamous cell carcinoma of the tongue.
SO - J Oral Pathol Med 2002 Apr;31(4):227-33
AD - Department of Oral and Maxillofacial Surgery, Nara Medical University,
Nara, Japan. masumi8148@hotmail.com
BACKGROUND: The incidence of delayed neck metastasis (DNM) in patients
with squamous cell carcinoma (SCC) of the tongue is reported to be 20%
to 50%. Although clinically negative cervical lymph nodes (N0) are
associated with a good outcome, the prognosis is poor in patients with
DNM. The aim of this study was to evaluate the clinicopathological and
immunohistochemical parameters associated with DNM in patients with
stage I/II SCC. METHODS: Fifty nine patients, with previously untreated
stage I/II carcinoma, underwent examination of clinicopathological and
immunohistochemical parameters and incidence of DNM. A linear
discriminant analysis was used to analyze prognostic factors and to
determine the probability of DNM occurring. RESULTS: DNM occurred in 14
(24%) subjects of the 59 study patients, level I to level III, within 5
years. Parameters such as gender and age, disease stage, tumor size and
histological grade, tumor location, degree of tumor invasion and
expression of VEGF, E-cadherin or Ki-67 showed no significant
correlation with the occurrence of DNM; however, factors such as tumor
morphology, tumor thickness greater than 4 mm, and Flt-4 expression were
significantly associated with development of DNM. CONCLUSIONS: Such
factors provide useful information with regard to DNM and the prognosis.
We concluded that patients with early SCC whose tumors are > 4 mm in
thickness and immunopositive for Flt-4 are particularly at risk of
developing DNM.
8
UI - 12076331
AU - Mignogna MD; Fedele S; Ruoppo E; Lo Russo L
TI -
The role of molecular techniques in preventing oral cancer and improving
its poor prognosis: an illusion?
SO - J Oral Pathol Med 2002 Apr;31(4):246-8; discussion 249-51
9
UI - 12058872
AU - Shimoyama T; Kato T; Nasu D; Kaneko T; Horie N; Ide F
TI -
Solitary neurofibroma of the oral mucosa: a previously undescribed
variant of neurofibroma.
SO - J Oral Sci 2002 Mar;44(1):59-63
AD - Department of Oral Surgery, Saitama Medical Center, Saitama Medical
School, Kawagoe, Japan.
We report a distinct morphologic type of neurofibroma, lipomatous
neurofibroma, arising in the oral mucosa, which has not been described
previously in the literature. A 25-year-old female patient presented
with a solitary mucosal mass on the palatal gingiva. Although the
limited biopsy material was diagnosed as a spindle cell lipoma,
characteristic light microscopic neurofibromatous areas, intricately
admixed with mature fat, were found in the entire resection specimen.
Immunohistochemically, many of the spindle cells were positive, either
diffusely or focally, for common neural markers, with patchy staining
for CD34 and epithelial membrane antigen. S-100 protein was also
positive in adipocytes. Ultrastructural examination confirmed the
diagnosis of neurofibroma and suggested an intimate relationship between
neoplastic neural cells and adipocytes.
10
UI - 12075196
AU - Rodu B; Cole P
TI -
Smokeless tobacco use and cancer of the upper respiratory tract.
SO - Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2002 May;93(5):511-5
AD - University of Alabama at Birmingham, AL 35294-0007, USA. rodu@uab.edu
The most recent epidemiologic review of the cancer risks associated with
smokeless tobacco use appeared in 1986, when 10 studies were available.
This review describes 21 published studies, 20 of which are of the
case-control type. We characterize each study according to the specific
anatomic sites and according to the type of smokeless tobacco products
for which it provides relative risks of cancer. The use of moist snuff
and chewing tobacco imposes minimal risks for cancers of the oral cavity
and other upper respiratory sites, with relative risks ranging from 0.6
to 1.7. The use of dry snuff imposes higher risks, ranging from 4 to 13,
and the risks from smokeless tobacco, unspecified as to type, are
intermediate, from 1.5 to 2.8. The strengths and limitations of the
studies and implications for future research are discussed.
11
UI - 12075207
AU - Wakulich C; Jackson-Boeters L; Daley TD; Wysocki GP
TI -
Immunohistochemical localization of growth factors fibroblast growth
factor-1 and fibroblast growth factor-2 and receptors fibroblast growth
factor receptor-2 and fibroblast growth factor receptor-3 in normal oral
epithelium, epithelial dysplasias, and squamous cell carcinoma.
SO - Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2002 May;93(5):573-9
AD - University of Western Ontario, London, Ontario, Canada.
OBJECTIVES: Fibroblast growth factors (FGFs) and their receptors (FGFRs)
have been identified in a variety of carcinomas, but there are few
studies concerning their presence in oral cancers. The objective of this
study was to determine whether FGF-1, FGF-2, and high affinity receptors
FGFR2 and FGFR3 are present in the pathogenesis of oral epithelial
dysplasias and oral squamous cell carcinoma. STUDY DESIGN: Sections from
formalin-fixed, paraffin-embedded samples of oral normal mucosa (n =
14), epithelial dysplasia (n = 20), carcinoma in situ (n = 10), and
squamous cell carcinoma (n = 12) were tested for cytoplasmic staining by
standard in situ immunohistochemistry with antibodies for FGF-1, FGF-2,
FGFR2, and FGFR3. RESULTS: Staining for FGF-1 is decreased or lost in
the development of epithelial dysplasia and carcinoma. Staining for
FGF-2 showed increased intensity (although not statistically
significant) in oral epithelial dysplasias and squamous cell carcinomas
and showed a significant increased expression in the upper layers of
dysplasias and stratum spinosum-like cells in squamous cell carcinomas.
Staining for FGFR2 showed a statistically significant increase in
intensity in all layers of epithelial dysplasias and squamous cell
carcinomas. Staining for FGFR3 was found in the upper stratum spinosum
cells of normal and dysplastic epithelium and well-differentiated
squamous cells in squamous cell carcinomas, with a statistically
significant increase in staining intensity in dysplastic and
carcinomatous tissues. CONCLUSIONS: The loss of FGF-1 is consistent with
loss of differentiation in dysplasias and some squamous cell carcinomas.
Changes in the localization of FGF-2 and FGFR2 into upper epithelial
layers with increasing dysplasia suggest increased mitotic potential of
high level cells. The co-localization of FGF-2 and its high affinity
receptors in neoplastic tissues suggests an autocrine mechanism of
influence on carcinogenesis.
12
UI - 12075209
AU - Sand LP; Jalouli J; Larsson PA; Hirsch JM
TI -
Prevalence of Epstein-Barr virus in oral squamous cell carcinoma, oral
lichen planus, and normal oral mucosa.
SO - Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2002 May;93(5):586-92
AD - Goteborg University, Angelholm Hospital, Goteborg, Angelholm, Sweden.
OBJECTIVE: The Epstein-Barr virus (EBV) is associated with both
malignant and benign diseases in the head and neck region. In several
studies it has also been associated with oral squamous cell carcinoma
(OSCC). Oral lichen planus (OLP) is a disease with unknown origin, and
viral antigens have been proposed as etiologic agents. Smoking and
alcohol habits are known risk factors for oral cancer development. In
this study, the prevalence of EBV in OSCC and OLP was investigated,
along with the effect of smoking, alcohol use, and age on EBV
prevalence. STUDY DESIGN: We examined 29 patients with OSCC, 23 with
OLP, and 67 with clinically healthy oral mucosa. For EBV DNA analysis, a
nested polymerase chain reaction method was used. RESULTS: The overall
EBV prevalence in patients with oral disease was 32.1%. Of the OSCC
patients, 37.9% were EBV positive; and of the OLP patients, 26.1% were
EBV positive. Both percentages were statistically significant compared
with that of control patients (7.3%). The difference in EBV prevalence
between the smoking control group and the nonsmoking control group was
insignificant. Increased age did not enhance EBV prevalence.
CONCLUSIONS: This investigation shows that EBV is present in oral
diseases such as OSCC and OLP. Smoking, alcohol use, or age does not
seem to be a risk factor for EBV infection. The etiologic role of EBV in
OSCC and OLP needs to be examined in a prospective follow-up study.
13
UI - 12117204
AU - Morimoto Y; Ikeuchi M; Yamamoto K; Kirita T; Sugimura M
TI -
Clinical study of disseminated intravascular coagulation in oral and
maxillofacial regions--predictors of onset and prognosis.
SO - Oral Dis 2001 Sep;7(5):291-5
AD - Department of Oral and Maxillofacial Surgery, Nara Medical University,
Kashihara, Japan. ysn-mori@nmu-gw.naramed-u.ac.jp
OBJECTIVES: To examine disseminated intravascular coagulation (DIC)
cases in detail to identify the predictors of onset and prognosis. STUDY
DESIGN: The clinical records of eight patients with DIC were examined
with regard to the patient's background, underlying disease, direct
inducers, duration, contents of treatments and outcome. The factors
which controlled the onset and prognosis of DIC were examined in cases
receiving surgery for malignant neoplasm compared with non-DIC cases.
Wilcoxon test was used for statistical analysis. RESULTS: There were
seven males and one female, age range from 25 to 93 years. The
underlying diseases were six malignant neoplasms, one severe infection,
and one case of multiple injuries of the mandible. Seven patients had
pretherapeutic complications, and six patients recovered. Reduction in
platelet counts immediately after the operation revealed high values up
to 36%, and patients with more than two pretherapeutic complications
were more susceptible to DIC when major postoperative complications
occurred. The operation time and blood loss may also have affected the
outcome. CONCLUSION: Change of platelet counts, number of pretherapeutic
complications, operation time and blood loss are important for
predicting the onset and prognosis of DIC in the oral and maxillofacial
regions.
14
UI - 12117209
AU - Chiesa F; Tradati N; Calabrese L
TI -
Sentinel node biopsy, lymphatic pattern and selective neck dissection in
oral cancer.
SO - Oral Dis 2001 Sep;7(5):317-8
15
UI - 12146119
AU - Bateman C
TI -
Oral cancer--an underestimated killer.
SO - S Afr Med J 2002 Jun;92(6):410, 412
16
UI - 11889909
AU - Medici A; Tullio A; Bertolini F; Sesenna E
TI -
Myoepithelioma of the palate: a case report.
SO - Acta Biomed Ateneo Parmense 2001;72(3-4):65-8
AD - Department of Maxillofacial Surgery, University Hospital of Parma,
Italy. amedic@tin.it
Myoepithelioma is a rare malignant neoplasm, representing about the 1%
of all the salivary gland's tumors. It mainly affects women,
particularly in the 7th and 8th decade of life. A case of myoepithelioma
of the palate in a 70-year-old woman is described. The tumor was
completely excised two years ago. Nowadays, there are no signs of local
recurrence and/or distant metastasis. The discrepancy between the
histological diagnosis of low-grade malignancy and the clinical
aggressive behavior of the tumor is discussed.
17
UI - 12148854
AU - Iwai H; Kyomoto R; Ha-Kawa SK; Lee S; Yamashita T
TI -
Magnetic resonance determination of tumor thickness as predictive factor
of cervical metastasis in oral tongue carcinoma.
SO - Laryngoscope 2002 Mar;112(3):457-61
AD - Department of Otorhinolaryngology, Kansai Medical University, Osaka,
Japan. iwai@takii.kmu.ac.jp
OBJECTIVES: To establish an accurate and reproducible means of measuring
tumor thickness as a preoperative prognostic factor for cervical
metastasis in oral tongue carcinoma. STUDY DESIGN: Retrospective review.
METHODS: Charts from 30 patients were reviewed, and the correlation
between histopathological and magnetic resonance imaging (MRI) findings
of actual tumor thickness or reconstructed tumor thickness measured
between a reconstructed mucosal line and the deepest extent of the tumor
was investigated. Magnetic resonance images were acquired on a 1.5
T-scanner with a T2-weighted sequence in the axial plane using
3-mm-thick sections and a 256 x 256 matrix. The correlation between N
stage and tumor thickness acquired by histopathological scrutiny or MRI
was also assessed. RESULTS: The correlation between histopathological
and MRI examinations was more significant in terms of reconstructed than
actual tumor thickness. No cervical metastasis was detected in patients
with tumors of less than 6 mm of reconstructed thickness in the MRI
examination. The difference in cervical metastasis between the two
groups, namely, less than 6 or more than 6 mm, was statistically
significant (P = .0051). CONCLUSIONS: Magnetic resonance imaging
examination provides useful data for prognostic assessment and planning
strategies with which to treat oral tongue carcinoma. The preoperative
decision as to whether to attempt neck dissection could be based on a
tumor thickness of 6 mm for patients with oral tongue carcinoma.
18
UI - 12148858
AU - Gonzalez-Moles MA; Gutierrez J; Rodriguez MJ; Ruiz-Avila I;
TI -
Rodriguez-Archilla A
Epstein-Barr virus latent membrane protein-1 (LMP-1) expression in oral
squamous cell carcinoma.
SO - Laryngoscope 2002 Mar;112(3):482-7
AD - Department of Oral Medicine, School of Dentistry, University of Granada,
Spain. magonzal@ugr.es
OBJECTIVES: Epstein-Barr virus (EBV) is frequently associated with
malignant cell transformation through the action of the oncoprotein
latent membrane protein-1 (LMP-1). The present study aimed to determine
the presence of EBV in oral squamous cell carcinomas (OSCCs) and the
expression of LMP-1 in neoplastic cells of EBV-positive OSCCs. STUDY
DESIGN/METHODS: In a retrospective study of 78 OSCCs, we investigated
the presence of the DNA of EBV by polymerase chain reaction, the
expression of the oncoprotein LMP-1 by immunohistochemistry, and the
presence of EBV-encoded RNA (EBER) by in situ hybridization. RESULTS:
EBV DNA was detected in 19.2% of the cases. Expression of LMP-1 in
neoplastic cells was found in 85.7% of the EBV-positive OSCCs. EBV
presence was significantly more frequent (P <.05) in OSCCs localized on
the lateral tongue. EBV-positive OSCCs more frequently presented (P
<.05) greater nuclear atypia. CONCLUSION: EBV can appear in latent form
in OSCC and express its main oncoprotein, LMP-1.
19
UI - 12112547
AU - Po Wing Yuen A; Lam KY; Lam LK; Ho CM; Wong A; Chow TL; Yuen WF; Wei WI
TI -
Prognostic factors of clinically stage I and II oral tongue carcinoma-A
comparative study of stage, thickness, shape, growth pattern, invasive
front malignancy grading, Martinez-Gimeno score, and pathologic
features.
SO - Head Neck 2002 Jun;24(6):513-20
AD - Department of Otorhinolaryngology, Queen Mary Hospital, Pokfulam Road,
Hong Kong, China. pwyuen@hkucc.hku.hk
PURPOSE: This study aims at evaluation of the different prognostic
models, including stage, tumor thickness, shape, malignancy grading of
tumor invasive front, Martinez-Gimeno score, and pathologic features in
the prediction of subclinical nodal metastasis, local recurrence, and
survival of early T1 and T2 oral tongue squamous cell carcinoma. The
results will have important implication for the management of patients.
PATIENTS AND METHODS: Seventy-two clinically T1 and T2 glossectomy
specimens of oral tongue carcinoma were serially sectioned in 3-mm
thickness for the evaluation of various pathologic features. The
prognostic value in the prediction of subclinical nodal metastasis,
local recurrence, and survival of different models were compared.
RESULTS: Among all the tumor parameters and predictive models being
evaluated, tumor thickness was the only significant factor that had
significant predictive value for subclinical nodal metastasis, local
recurrence, and survival. With the use of 3-mm and 9-mm division, tumor
of up to 3-mm thickness has 8% subclinical nodal metastasis, 0% local
recurrence, and 100% 5-year actuarial disease-free survival; tumor
thickness of more than 3 mm and up to 9 mm had 44% subclinical nodal
metastasis, 7% local recurrence, and 76% 5-year actuarial disease-free
survival; tumor of more than 9 mm had 53% subclinical nodal metastasis,
24% local recurrence, and 66% 5-year actuarial disease-free survival.
CONCLUSIONS: Tumor thickness should be considered in the management
planning of patients with early oral tongue carcinoma. Copyright 2002
Wiley Periodicals, Inc.
20
UI - 12112548
AU - Rogers SN; Gwanne S; Lowe D; Humphris G; Yueh B; Weymuller EA Jr
TI -
The addition of mood and anxiety domains to the University of Washington
quality of life scale.
SO - Head Neck 2002 Jun;24(6):521-9
AD - Consultant and Honorary Reader, Regional Maxillofacial Unit, University
Hospital Aintree, Fazakerley, Liverpool L9 1AL United Kingdom.
snrongers@globalnet.co.uk
BACKGROUND: There are numerous head and neck specific quality of life
questionnaires, each having its own merits and disadvantages. The
University of Washington questionnaire has been widely used and is
notable by the inclusion of a shoulder dysfunction domain, domain
importance ratings, and patient free text. It is short, simple to
process, and provides clinically relevant information. However, it has
lacked any psychological dimension of quality of life. The aim of this
study was to report the inclusion of two psychological domains (mood,
anxiety) to the most recent refinement of the questionnaire (version 3).
Questionnaires were sent to 183 patients alive and disease free after
surgery for oral and oro-pharyngeal malignancy. Replies were received
from 145 patients (79% response rate). RESULTS: The new domains (mood
and anxiety) correlated significantly with the emotional functioning
domains from the EORTC C30 and with the pain and appearance domains of
UW-QOL. There were also significant correlations between the "global
quality of life" item and the two new domains. Mood (p =.005) and
anxiety (p <.001) scores were associated with patient age but with no
other clinicodemographic variable. CONCLUSION: The addition of mood and
anxiety domains makes the UW-QOL version 4 a single broad measure
suitable for effective health-related quality of life evaluation in the
routine clinical setting. Copyright 2002 Wiley Periodicals, Inc.
21
UI - 12112556
AU - Kaneko S; Yoshimura T; Ikemura K; Shirasuna K; Kusukawa J; Ohishi M;
TI -
Shiba R; Sunakawa H; Tominaga K; Sugihara K; Shinohara M; Katsuki T;
Yanagisawa S; Kurokawa H; Mimura T; Ikeda H; Yamabe S; Ozeki S
Primary neck management among patients with cancer of the oral cavity
without clinical nodal metastases: A decision and sensitivity analysis.
SO - Head Neck 2002 Jun;24(6):582-90
AD - Department of Clinical Epidemiology, Institute of Industrial Ecological
Sciences, University of Occupational and Environmental Health, Japan.
stkaneko@ncc.go.jp
BACKGROUND: A standardized neck management strategy for oral cancer
patients without clinical nodal metastases remains to be established.
Consequently, a decision and sensitivity analysis of two neck management
protocols, involving either prophylactic neck dissection or careful
observation, was conducted using the Oral Cancer Registry of Kyushu,
Japan. METHODS: We calculated probabilities of subclinical nodal
metastases and 5-year survival using the registry data. A two-way
sensitive analysis was conducted using the probabilities and parameters
of the complete nodal metastasis resection rate (x) and a utility rating
that describes the health state induced by dissection (y) compared with
the neck condition in a careful-observation group. RESULTS: We solved
the threshold curve for y and x for the expected utility between the two
groups. The results showed that prophylactic neck dissection must
guarantee a complete resection of subclinical nodal metastases with no
disadvantage to health state to be evaluated as equally satisfactory as
careful observation. CONCLUSIONS: Careful observation involving
standardized systematic preoperative and postoperative screening of the
neck seems preferable to prophylactic neck dissection for oral cancer
patients without subclinical nodal metastases. Copyright 2002 Wiley
Periodicals, Inc.
22
UI - 12112559
AU - Hessel AC; Byers RM
TI -
Desmoplastic melanoma of the lip.
SO - Head Neck 2002 Jun;24(6):605-8
AD - Department of Head and Neck Surgery, Box 441, The University of Texas M.
D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas
77030, USA.
BACKGROUND: This retrospective study looks at the prognosis of
desmoplastic melanoma of the lip, correlating it with the clinical
course, treatment, and patterns of failure. METHOD: Twenty-two patients
with desmoplastic melanoma of the lip were seen at the University of
Texas M. D. Anderson Cancer Center from 1965 to 1998. RESULTS: Three
disease groups: (I) untreated tumor (3 patients), (II) excisional scar
(10 patients), and (III) locoregional recurrence (9 patients). Group I
had two cures and one failure. In group II six had no recurrences, and
there were four failures. In group III, all patients failed. Ten
patients (45%) had no evidence of disease, of which three (30%) had an
initial misdiagnosis. Twelve patients (55%) died of disease or were
living with disease, of which eight (67%) had an initial misdiagnosis.
CONCLUSIONS: Desmoplastic melanoma of the lip is often misdiagnosed and,
therefore, inappropriately treated with multiple recurrences and poor
prognosis. Accurate diagnosis and combined treatment may improve local
control and survival. Copyright 2002 Wiley Periodicals, Inc.
23
UI - 12073053
AU - Soni S; Pande P; Shukla NK; Ralhan R
TI -
Coexpression of Ets-1 and p53 in oral carcinomas is associated with
P-glycoprotein expression and poor prognosis.
SO - J Cancer Res Clin Oncol 2002 Jun;128(6):336-42
AD - Department of Biochemistry, All India Institute of Medical Sciences,
Ansari Nagar, New Delhi 110029, India.
PURPOSE: To determine the association between the expression of P-gp
with Ets-1 and p53 proteins in oral squamous cell carcinomas (SCCs).
MATERIALS AND METHODS: Immunohistochemical analysis of Ets-1,
P-glycoprotein (P-gp), and p53 proteins was carried out in 40
formalin-fixed, paraffin-embedded tissue sections from oral SCCs using
specific antibodies for these proteins. RESULTS: Expression of Ets-1
protein was observed in 27/40 (68%) cases, P-gp was overexpressed in
27/40 (68%) cases, and p53 accumulation was observed in 26/40 (65%)
cases. Twenty-two of 27 (82%) SCCs showed concomitant overexpression of
Ets-1 and P-gp underpinning an association between the expression of
these two proteins ( P=0.007). Twenty-one of 27 (78%) Ets-1
overexpressing oral SCCs showed accumulation of p53 protein ( P=0.015).
Nineteen of the 27 (70%) P-gp expressing tumours showed p53
accumulation. Concomitant Ets-1 and P-gp overexpression was
significantly associated with poor prognosis ( P=0.002). In multivariate
analysis using Cox's proportional hazards model, P-glycoprotein emerged
as the most significant adverse predictor of disease-free survival
(HR=6.2, P=0.003). The hallmark of the study was the significant
association between the expression of Ets-1, P-gp, and p53 proteins in
oral SCCs and their association with poor prognosis. Oral cancer
patients showing concomitant expression of Ets-1, P-gp, and p53 proteins
had shorter disease-free survival (median time of no recurrence=18
months) and worst prognosis ( P=0.001) as compared to the cases
overexpressing any of these proteins. CONCLUSION: Concomitant expression
of Ets-1, P-gp, and p53 proteins adversely affects the clinical outcome
in oral SCCs.
24
UI - 12139232
AU - Neville BW; Day TA
TI -
Oral cancer and precancerous lesions.
SO - CA Cancer J Clin 2002 Jul-Aug;52(4):195-215
AD - Department of Stomatology, College of Dental Medicine, Medical
University of South Carolina, Charleston, USA.
In the United States, cancers of the oral cavity and oropharynx
represent approximately three percent of all malignancies in men and two
percent of all malignancies in women. The American Cancer Society
estimates that 28,900 new cases of oral cancer will be diagnosed in
2002, and nearly 7,400 people will die from this disease. Over 90
percent of these tumors are squamous cell carcinomas, which arise from
the oral mucosal lining. In spite of the ready accessibility of the oral
cavity to direct examination, these malignancies still are often not
detected until a late stage, and the survival rate for oral cancer has
remained essentially unchanged over the past three decades. The purpose
of this article is to review the clinical features of oral cancer and
premalignant oral lesions, with an emphasis on early detection.
25
UI - 11876537
AU - Lopez-Graniel CM; Tamez de Leon D; Meneses-Garcia A; Gomez-Ruiz C;
TI -
Frias-Mendivil M; Granados-Garcia M; Barrera-Franco JL
Tumor angiogenesis as a prognostic factor in oral cavity carcinomas.
SO - J Exp Clin Cancer Res 2001 Dec;20(4):463-8
AD - Surgical Oncology Division, Instituto Nacional de Cancerologia, Mexico
City, Mexico. iceberg1@prodigy.net.mx
Currently, lymph node metastasis and thickness of the tumor are the gold
standard as a predictor of survival in patients with oral cavity
squamous cell carcinoma (OSCC). However, there is a significant
correlation between microvessel density and the development of cervical
metastases or recurrence. Previous studies have demonstrated that head
and neck cancers are able to induce an angiogenic response in
experimental models. This factor shows a strong correlation with
regional recurrence. In this study we propose to use angiogenesis as an
independent prognostic indicator of recurrence. We evaluated the
expression of tumor angiogenesis in OSCC and determinated its possible
usefulness as a prognostic factor. Thirty-three cases with diagnosis of
Neck Department of the Instituto Nacional de Cancerologia in Mexico
City. These cases were analyzed retrospectively for a minimum period of
six months. All of them received a conventional complete treatment to
the primary tumor and lymph node metastasis. Paraffin-embedded tumor
specimens were available in all patients. The tumors were scanned and
the areas of highest microvessel density (MVD) were immunostained for
CD-34 using QBEnd/10 antibody. Statistical analysis included descriptive
statistics, Wilcoxon test curves, and Cox's proportional hazards model
for multivariate analysis. We identified 33 patients with OSCC, 16 were
men and 17 women. The mean age among all patients was 58.9 years old.
Based on tumor size 33.3% were T1, 27.3% T2, 12.1% T3, and 27.3% T4. The
median microvessel count was 32.5. The mean percentage of MVD was 37 in
patients with regional recurrence and in those patients without regional
metastasis was 29 (p<0.05). 57.9% of the patients who presented
recurrence had vessel counts over the median (p<0.01). In fact, 6
patients (46%) who showed more than 20% of angiogenesis expression and
higher MVD presented with recurrence. Only 3 patients (23%) who had less
than 20% of angiogenesis expression and lower MVD developed recurrence
(p<0.01). Higher MVD was seen with increasing T and N stages; however,
it did not show correlation with survival. In this study, angiogenesis
expression demonstrated to be an independent factor of recurrence in
patients with OSCC. It is suggested that it should be used as an
independent prognostic indicator. In concordance with previous reports,
we observed a significant correlation between MVD determination and
recurrence of the tumor, followed by lymph node metastases and tumor
size.
26
UI - 11936246
AU - Vig EK; Brodkin KI; Raugi GJ; Gladstone H
TI -
Blue rubber bleb nevus syndrome in a patient with ataxia and dementia.
SO - J Geriatr Psychiatry Neurol 2002 Spring;15(1):7-11
AD - Division of Gerontology and Geriatric Medicine, Department of Medicine,
University of Washington, Seattle, USA.
Blue rubber bleb nevus syndrome (BRBNS), an uncommon disorder
characterized by cavernous hemangiomas, most often of the skin and
gastrointestinal tract, is usually diagnosed during childhood and young
adulthood. We made this diagnosis in an octogenarian referred to a
geriatric medicine clinic because of concerns about his ability to live
independently. Ataxia, dementia, focal neurologic signs, and
bluish/purplish vascular nodules on his lips, buccal mucosa, tongue,
chest, and neck were noted on physical examination. Magnetic resonance
imaging (MRI) revealed an old left parietal infarction, multiple
cavernous hemangiomas most densely concentrated in the subcortical
structures and cerebellum, and areas of hemosiderin deposition. Skin
biopsy findings were consistent with hemangioma. The physical
examination, MRI, and skin biopsy made a diagnosis of BRBNS likely. The
patient's ataxia, dementia, and other neurologic signs can be explained
by previous hemorrhage from the vascular malformations in his brain.
Blue rubber bleb nevus syndrome is an uncommon cause of a relatively
common geriatric syndrome presentation.
27
UI - 12017873
AU - Hoffmann J; Scheiderbauer H; Krimmel M; Grund KE; Reinert S
TI -
[Value of panendoscopic examinations within the scope of diagnosing the
extent of carcinoma of the mouth cavity]
SO - Mund Kiefer Gesichtschir 2002 Mar;6(2):111-6
AD - Klinik und Poliklinik fur Mund-, Kiefer- und Gesichtschirurgie,
Universitatsklinikum Tubingen, Osianderstrasse 2-8, 72076 Tubingen.
juergen.hoffmann@uni-tuebingen.de
BACKGROUND: In our department panendoscopic examinations of the
tracheobronchial system, the epi-, meso,- and hypopharynx, and the upper
gastrointestinal tract are obligatory with regard to the staging of oral
squamous cell carcinomas, the main interest being the exclusion of
synchronous secondary carcinomas. The aim of this study was to present
the pathological findings in 160 panendoscopies of patients with
previously untreated oral squamous cell carcinomas. STUDY: A total of 17
synchronous carcinomas were found in 13 (8.2%) of all cases studied.
They were situated in the esophagus (n = 9), the stomach (n = 1), the
duodenum (n = 1), the hypopharynx (n = 1), the trachea (n = 1), and the
lung (n = 4). Multiple carcinomas were found in three patients. The
survival time of patients with a secondary carcinoma proved to be
significantly worse than that of the other patients. The abuse of
alcohol and tobacco causes a high amount of inflammatory changes in the
aerodigestive system. In 27 cases (17%) ulcers of the stomach or
duodenum were found, although the majority of the patients had large
inflammatory mucosal alterations. In 49 cases (34.5%) a chronic
tracheobronchitis could be found. DISCUSSION: In our opinion there is an
absolute indication for panendoscopic examinations of patients with oral
squamous cell carcinomas. In cases with dysplastic mucosal findings
these endoscopies have to be repeated on a regular basis.
28
UI - 12017874
AU - Eckardt A; Rades D; Rudat V; Hofele C; Dammer R; Dietl B; Wildfang I;
TI -
Karstens JH
[Prospective phase II study of neoadjuvant radiochemotherapy in advanced
operable carcinoma of the mouth cavity. 3-year outcome]
SO - Mund Kiefer Gesichtschir 2002 Mar;6(2):117-21
AD - Klinik fur Mund-, Kiefer- und Gesichtschirurgie, Medizinische Hochschule
Hannover, Carl-Neuberg-Strasse 1, 30625 Hannover.
eckardt.andre@mh-hannover.de
PURPOSE: The purpose of simultaneous chemoradiotherapy is to increase
local-regional control and to decrease the incidence of distant
metastases. Regimens containing cisplatin/5-FU chemotherapy are widely
accepted as standard treatment in advanced head and neck cancer. Most
studies reported promising response and survival data, but also severe
mucosal toxicity. In recent years the newly developed drug Taxol
demonstrated interesting activity in head and neck cancer as a single
agent as well as in combination drug regimens. In the present outpatient
phase II trial, we investigated the combination of Taxol/carboplatin
with 40 Gy radiotherapy in a neoadjuvant setting of operable stage
III/IV squamous cell carcinoma of the oral cavity and oropharynx.
PATIENTS AND METHODS: Fifty-three patients were enrolled in this trial
weekly of Taxol (40 mg/m2) and carboplatin (AUC 1.5) with conventional
radiotherapy (40 Gy). Within 3-4 weeks after chemoradiotherapy resection
of the primary tumor and the regional neck nodes was performed. RESULTS:
Fifty-two patients were evaluable for toxicity and response. Complete
response was observed in 31 of 52 patients (CR 60%), and partial
remission was seen in 21 of 52 patients (PR 40%). In 30 of 52 patients
complete pathologic response (pCR 58%) was documented in the resection
specimens. The 1-, 2-, and 3-year overall survival rate was calculated
as 84%. CONCLUSION: Our present results demonstrated impressive clinical
and pathological response rates of concurrent Taxol/carboplatin and
radiotherapy as a preoperative treatment modality in advanced oral and
oropharyngeal cancer.
29
UI - 12017879
AU - Kokemuller H; Brachvogel P; Eckardt A; Hausamen JE
TI -
[Effectiveness of neck dissection in metastasizing mouth carcinoma. Uni-
and multivariate analysis of factors of influence]
SO - Mund Kiefer Gesichtschir 2002 Mar;6(2):91-7
AD - Klinik und Poliklinik fur Mund-, Kiefer- und Gesichtschirurgie,
Medizinische Hochschule Hannover, Carl-Neuberg-Strasse 1, 30625
Hannover. mkg-chirurgie@mh.hannover.de
BACKGROUND: The purpose of this study was to evaluate the oncologic
effectiveness of radical and different types of modified neck
dissections with preservation of n. accessorius, v. jugularis interna,
and m. sternocleidomastoideus and to identify prognostic factors for
regional control and survival in univariate and multivariate analysis.
METHODS: This retrospective study included 373 patients with squamous
cell carcinoma of the oral cavity who underwent 401 neck dissections
Maxillofacial Surgery, Hanover Medical School. RESULTS: The 5-year
regional control was estimated at 87%. Relapse occurred only within the
first 2 years after neck dissection. The number of positive nodes,
metastases without lymphatic tissue, preparation of metastases from the
carotid artery and cranial base, and preoperative radiochemotherapy were
analyzed as prognostic factors with significant influence. The grade of
metastases, extracapsular spread, lymphangiosis carcinomatosa, and
postoperative radiation showed no prognostic significance. DISCUSSION:
The comparison of recurrent metastases after radical and modified neck
dissection demonstrated that as the extent of neck disease increased
there was a tendency toward improved regional control after radical neck
dissection.
30
UI - 12101112
AU - Chiu CJ; Chang ML; Chiang CP; Hahn LJ; Hsieh LL; Chen CJ
TI -
Interaction of collagen-related genes and susceptibility to betel
quid-induced oral submucous fibrosis.
SO - Cancer Epidemiol Biomarkers Prev 2002 Jul;11(7):646-53
AD - Graduate Institute of Epidemiology, College of Public Health, National
Taiwan University, Taipei 100, Taiwan.
Oral submucous fibrosis (OSF) is a precancerous condition of the oral
cavity.It is a collagen-related disorder induced by betel quid chewing,
a habit that is common in Taiwan. However, the cumulative exposure to
betel quids varies in OSF patients. It seems that there is individual
susceptibility to betel quid-induced OSF. This study compared the
association of OSF and polymorphisms of six collagen-related genes,
collagen 1A1 and 1A2 (COL1A1 and COL1A2), collagenase-1 (COLase),
transforming growth factor beta1 (TGF-beta1), lysyl oxidase