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Clear cell syringoid carcinoma: an ultrastructural and immunohistochemical study
D Ramos1, C Monteagudo, C Carda
1Department of Pathology, Hospital Clínico Universitario, University of Valencia, Spain.
The American Journal of Dermatopathology
|March 4, 2000
Summary
This study details a rare clear cell variant of syringoid carcinoma, a cutaneous tumor. Ultrastructural and immunohistochemical analyses confirmed its malignant ductal differentiation and key characteristics.
Area of Science:
- Dermatopathology
- Oncology
- Cell Biology
Background:
- Syringoid carcinoma is a rare cutaneous neoplasm with diagnostic challenges.
- Distinguishing it from benign syringoma and other malignancies is crucial.
Observation:
- A case of clear cell syringoid carcinoma was examined using immunohistochemistry and ultrastructural analysis.
- Tumor cells exhibited cytoplasmic glycogen accumulation, intercellular/intracellular lumina, and malignant features like perineural invasion.
Findings:
- Immunohistochemistry revealed cytoplasmic and membranous positivity for EMA, CEA, keratins, and S-100.
- Ultrastructural findings supported ductal differentiation in the clear cell population.
Implications:
- This case enhances understanding of clear cell syringoid carcinoma variants.
- Definitive diagnosis relies on integrated clinicopathological, immunohistochemical, and ultrastructural data.