Histologic Diagnosis of Inflammatory Skin Diseases

Keloid

…, acanthosis accompanied by hyperpigmentation, and, at times, folliculosebaceous units that have been induced from surface epidermis; at nearly all stages, histiocytes and/or fibrocytes are dispersed among thickened bundles of collagen at the periphe…

Histologic Diagnosis of Inflammatory Skin Diseases

Lymphocytoma cutis

…gstanding inflammatory response to rupture of an infundibular cyst. Dilantin may induce changes in the skin that vaguely resemble those of a lymphoma, but that happens rarely. The designation, “lymphocytoma cutis,” and synonyms for it, la…

Histologic Diagnosis of Inflammatory Skin Diseases

Necrobiosis lipoidica

…at, as disparate as corneocytes (from a ruptured infundibular cyst) to urate (in some lesions of gout). It is easy for beginners in dermatopathology, and sometimes even for long-time practitioners, to misinterpret degeneration of collagen in necrobio…