Table of ContentsDefinition / General | Case Reports | Micro Description | Micro Images | Positive Stains | Negative Stains | Electron Microscopy Description | Electron Microscopy Images | Differential Diagnosis
Cite this page: PEComa. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/prostatePEComa.html. Accessed March 27th, 2017.
Definition / General
- Perivascular epithelioid cell tumors (PEComas) include clear cell "sugar" tumor of lung, lymphangioleiomyomatosis, angiomyolipoma (see Soft Tissue chapter)
- Epithelioid cells with clear / granular cytoplasm in perivascular distribution
Electron Microscopy Description
- May have premelanosomes
- Clear cell sarcoma of soft parts: no vascular stroma, no perivascular arrangement of tumor cells, S100+