Solid ameloblastomas - Retrospective clinical and histopathologic study of 54 cases.
نویسندگان
چکیده
UNLABELLED Recently, the World Health Organization (WHO) excluded the desmoplastic pattern from the histopathological spectrum of solid ameloblastomas and classified it as a distinct variant, named desmoplastic ameloblastoma. AIM To perform a retrospective analysis of the clinicopathologic aspects in a case series of solid ameloblastomas. STUDY DESIGN Cross-sectional cohort study. MATERIALS AND METHODS Data regarding age, gender, location and clinical characteristics were retrieved from patient records. Histological sections were evaluated regarding existing histological patterns and the predominant histological pattern. Cases were classified according to the study of Waldron and El-Mofty (1987) and the WHO classification of 2005. RESULTS A total of 54 cases were identified, with similar gender distribution and a mean age of 38.3 years. Fifty three cases (98.1%) affected the mandible. Forty nine cases (90.8%) were classified as solid ameloblastomas, 3 (5.6%) as desmoplastic ameloblastomas, and 2 (3.7%) as hybrid lesions. The most frequent histological patterns in solid ameloblastomas were follicular (77.6%), acanthomatous (69.4%), and plexiform (65.3%). Focal areas of desmoplastic ameloblastomas were identified in 11 solid ameloblastomas (22.4%). CONCLUSION Despite its characterization as a distinct variant, our results revealed that focal areas of desmoplastic ameloblastomas can be observed with some frequency in conventional ameloblastomas.
منابع مشابه
Solid ameloblastomas - Retrospective clinical and histopathologic study of 54 cases Summary
متن کامل
Ki-67 antigen in ameloblastomas: correlation with clinical and histological parameters in 54 cases from Kenya.
The aim of this study was to assess the cell proliferation in ameloblastomas and to correlate this with clinical features and histology. Immunohistochemistry with Ki-67 monoclonal antibody was performed on fresh tissue from 54 ameloblastomas. A labelling index (LI) was calculated by expressing the percentage of Ki-67 positive cells. There was no significant correlation between LI and clinical f...
متن کاملOral and Jaw Lesions in Adults: A 19-Year Retrospective Study In Northern Iran
Background and Objectives: There are a few studies on histopathologic type of oral lesions especially from Iran. The aim of this study was to survey the oral lesions in Babol, northern Iran. Methods: The histopathology records were retrospectively reviewed for all lesions of oral cavity and jaws, during the years 1990 to 2009. The data were collected from the archive of pathology and analyz...
متن کاملCompatibility Rate of Clinical and Histopathologic Diagnosis of Oral Lesions in Zahedan Dental School during 1999-2015
Introduction: Different oral lesions have clinical characteristics which in some cases are similar. Therefore, in these cases histopathological examination for correct diagnosis is necessary. The aim of this study was to evaluate the compatibility rate of clinical and histopathological diagnosis of oral lesions in Zahedan School of dentistry. Methods: In this retrospective study, determination ...
متن کاملگزارش یک مورد آملوبلاستیک کارسینوما در فک پایین
Ameloblastic carcinoma is an extremely rare malignant neoplasm which mostly occurs in the mandible and at a wide age group. It has no gender bias and has specific histopathologic features and its surgical treatment requires more aggression than ameloblastoma. . The number of reported cases of the disorder are rare, and it is very difficult to diagnose based on histopathologic findings because t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Brazilian journal of otorhinolaryngology
دوره 76 2 شماره
صفحات -
تاریخ انتشار 2010