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Sebaceous carcinoma and the T-antigen
1Department of Pathology, Immunology, Laboratory Medicine and Dermatology, University of Florida College of Medicine, P.O. Box 100275, Gainesville, FL 32610, USA. Hassan@pathology.ufl.edu
Seminars in Cutaneous Medicine and Surgery
|April 21, 2004
Summary
Sebaceous carcinomas (SC) are rare cancers. This review details their classification, histology, and diagnosis, highlighting the Thomsen-Friedenreich antigen
Area of Science:
- Dermatopathology
- Oncology
Background:
- Sebaceous carcinomas (SC) are uncommon malignancies.
- They are classified as ocular or extraocular, with ocular SC generally being more aggressive.
Purpose of the Study:
- To review the histologic classification, differential diagnosis, pathogenesis, and management of sebaceous carcinomas.
- To highlight diagnostic tools for SC.
Main Methods:
- Review of existing literature on sebaceous carcinomas.
- Discussion of histologic classification criteria.
- Evaluation of immunohistochemical markers, specifically the Thomsen-Friedenreich (T) antigen.
Main Results:
- Histologic classification includes SC in situ, low-grade and high-grade infiltrating SC, and SC with advanced involvement.
- The Thomsen-Friedenreich (T) antigen shows strong reactivity in basaloid cells of SC, aiding differentiation from other neoplasms.
Conclusions:
- Accurate histologic classification is crucial for managing sebaceous carcinomas.
- The T-antigen can be a valuable diagnostic aid in distinguishing SC from mimics.