Search Results for: squamous-cell carcinoma

Extraocular sebaceous carcinoma: a series of three cases with varied presentation

Extraocular sebaceous carcinoma: a series of three cases with varied presentation

…cularly common in eyelid tumours. An exclusively in-situ component may rarely occur and differentiating this from an in-situ squamous carcinoma may be extremely difficult, especially if sebocytic differentiation is sparse. A thorough histologic…

Histologic Diagnosis of Inflammatory Skin Diseases

Subcutaneous T-cell lymphoma

…tive, and dense, patchy lymphoplasmacytic infiltrates in the dermis and subcutaneous fat. Histiocytosis X (Langerhans” cell histiocytosis) consists of a dense infiltrate of abnormal Langerhans” cells characterized by large, pale,…

Differential Diagnosis in Dermatopathology

Granular-cell tumor vs. Xanthoma

Extramammary Paget’s disease is an apocrine carcinoma that begins within the epidermis and presents itself clinically as a patch or a subtle plaque that extends centrifugally for many years before becoming a readily discernible thick plaque,…

Differential Diagnosis in Dermatopathology

Pale-cell acanthoma vs. Psoriasis, plaque expression

Extramammary Paget’s disease is an apocrine carcinoma that begins within the epidermis and presents itself clinically as a patch or a subtle plaque that extends centrifugally for many years before becoming a readily discernible thick plaque,…