Search Results for: morpheiform basal-cell carcinoma

Histologic Diagnosis of Inflammatory Skin Diseases

Acquired epidermolysis bullosa

…ermolysis bullosa is cleavage in keratocytes of the epidermal basal layer. Tiny vacuoles in the cytoplasm of epidermal basal cells become confluent to form clefts and, later, a blister develops at that site, extending beneath it to become subepiderma…

Differential Diagnosis in Dermatopathology

Sebaceous hyperplasia vs. Nevus sebaceus of Jadassohn

A disease manifested chiefly in the skin by vesicles and bullae that appear on sites of trauma, especially the face and dorsa of the hands, often in conjunction with macular hyperpigmentation and hypertrichosis of a face and sclerodermoid changes on…

Differential Diagnosis in Dermatopathology

Discussions

…on, usually a man. Often it is misinterpreted clinically as a basalcell carcinoma. Close inspection reveals a slightly dull-surfaced, violaceous, keratotic papule. The keratotic component militates against basalcell carcinoma, a neoplasm whose surf…

Differential Diagnosis in Dermatopathology

Discussions

…f sebaceous hyperplasia may be misinterpreted clinically as a basalcell carcinoma because both conditions have a slightly elevated border and a central dell. In basalcell carcinoma, however, the depression in the center usually represents an erosio…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…llagen in the upper part of the dermis, of lymphocytes in the basal layer, and of elongated mounds of parakeratosis militate against that diagnosis. 10.80.2A: Perivascular dermatitis, slightly spongiotic + 10.80.2B: Lymphocytes in the basal layer and…

Histologic Diagnosis of Inflammatory Skin Diseases

Pityriasis rubra pilaris

…ibula dilated and plugged by orthokeratotic and parakeratotic cells in a manner similar to that in the epidermis Late All the findings in lesions developed fully, except mitotic figures are not present above the basal layer, and there is no pallor of…