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Dermatology Practical & Conceptual

Saved by step sections: an unusual presentation of basal cell carcinoma

Abstract Background: Basal cell carcinoma usually occurs in sun exposed areas of older male individuals. Objectives: To emphasize the importance of histological step sections in the pursuit of the correct diagnosis when microscopic findings do not…

Histologic Diagnosis of Inflammatory Skin Diseases

Subcutaneous T-cell lymphoma

…t from dense infiltrates of neoplastic lymphocytes accompanied by inflammatory cells in fat lobules and in the deep reticular dermis. Fibrosis replaces zones of necrosis in the subcutaneous fat and sometimes is manifested clinically by gullies at aff…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Mucha-Habermann Disease a Lymphocytic Vasculitis?

cell swelling and exocytosis of erythrocytes and lymphocytes, but few neutrophils and no nuclear dust. Fibrin deposition is not seen.” “The lymphocytic vasculitis seen in pityriasis lichenoides et varioliformis acuta may be present, but…

Differential Diagnosis in Dermatopathology

Granular-cell tumor vs. Xanthoma

An inflammatory process that often begins as a suppurative folliculitis manifested clinically as pustules. It rapidly extends to become ulcers marked at their periphery by boggy tissue. The skin disease is associated commonly with inflammatory bowel…

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