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Sebaceous carcinoma (SC) is a relatively uncommon malignant epithelial neoplasm with a predilection for the periocular region. The diagnosis of SC can be difficult to make at initial presentation, as(More)
Oral mucosal melanoma is rare. Its incidence peaks between 41 and 60 years of age; male/female ratio is 2:1. Preferred oral sites include hard palate and maxillary gingiva. Risk factors have not been(More)
Pagetoid squamous cell carcinoma in situ (PSCCIS) is characterized by cytologically atypical cells, with abundant, pale-staining cytoplasm arranged singly and in nests within the epidermis (pagetoid(More)
Atypical fibroxanthoma (AFX) is a low-grade, dermal, mesenchymal neoplasm, which lacks a specific lineage of differentiation. The classical histologic appearance of AFX is that of a pleomorphic and(More)