Search Results for: morpheiform basal-cell carcinoma

Histologic Diagnosis of Inflammatory Skin Diseases

Melanocytes

…a conventional microscope, melanocytes appear as “clear cells” in and immediately beneath the row of epidermal basal cells, that is, the dermoepidermal junction (Fig. 1.62). The space characteristic of melanocytes, and for which they were…

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

Blood Vessels

…ectron microscopy to consist of a single layer of endothelial cells that line a narrow lumen, those cells being surrounded by a layer of pericytes (Fig. 1.78). The endothelial cells and pericytes are enveloped by a basal lamina. In the descending ven…