Parwani, "Perivascular
epithelioid cell tumor," Archives of Pathology & Laboratory, vol.
Perivascular
epithelioid cell neoplasms (PEComas) of soft tissue and gynecologic origin: a clinicopathologic study of 26 cases and review of the literature.
Hu, "Perivascular
epithelioid cell tumor of the liver: a report of two cases and review of the literature," World Journal of Gastroenterology, vol.
of Cases Percentage Smears showing only Caseous Necrosis 02 4.09% Smears showing Caseous Necrosis with 42 85.71%
Epithelioid Cells Smears showing only
Epithelioid Cells 05 10.20% Total 49 100% Table 5: Size Wise Distribution of Lymphadenopathy in HIV Patients Site Involved No.
Histologically it consists of relatively monomorphic ovoid or
epithelioid cells with clear to eosinophilic cytoplasm arranged in sheets and papillary or alveolar architectures, with variable numbers of CD68-positive osteoclast-like giant cells.
Group-2:
Epithelioid cell clusters with or without Langhan's giant cells with necrotic material
Histopathology of skin biopsy from lower back showed thinned out flattened epidermis; periadnexal, perivascular and perineural circumscribed
epithelioid cell granulomas and Langhan type giant cells with collection of foamy histiocytes in the dermis (Figure 3).
After histopathology tumour type depending on morphology like Spindle cell, Round cell,
Epithelioid cell, Pleomorphic type, with chondroid or osseus differentiation and undifferentiated type.
(1-3) Because the aforementioned lesions can be entirely or partially composed of clear to eosinophilic
epithelioid cells with a tendency to aggregate around vessels, it was proposed that they might originate from a peculiar muscle cell that expresses melanocyte-associated immunomarkers, that is, the perivascular
epithelioid cell.
For metastatic CCRCC to the pancreas, the differential diagnoses include ductal adenocarcinoma with clear cell appearance (clear cell carcinoma), clear cell endocrine pancreatic tumor, solid serous adenoma of the pancreas, clear cell variant of solid pseudopapillary tumor of the pancreas, and perivascular
epithelioid cell tumor (PEComa).
* Cohesive
epithelioid cell granuloma or lymphocytic cell collection.
Tuberculous lymphadenitis was categorized into patterns namely only caseous, caseous with
epithelioid cell granuloma, only epithelioid granuloma without caseous necrosis and suppurative.