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Histologic Diagnosis of Inflammatory Skin Diseases

Subcutaneous T-cell lymphoma

…mis and subcutaneous fat. Histiocytosis X (Langerhans” cell histiocytosis) consists of a dense infiltrate of abnormal Langerhans” cells characterized by large, pale, reniform nuclei and abundant amphophilic cytoplasm, many eosinophils,…

Differential Diagnosis in Dermatopathology

Granular-cell tumor vs. Xanthoma

Hamartomas (“congenital” melanocytic nevi) and benign neoplasms (“acquired” melanocytic nevi) of various specific types, all of which are composed of abnormal melanocytes and manifested clinically as lesions of different colo…

Differential Diagnosis in Dermatopathology

Pale-cell acanthoma vs. Psoriasis, plaque expression

Hamartomas (“congenital” melanocytic nevi) and benign neoplasms (“acquired” melanocytic nevi) of various specific types, all of which are composed of abnormal melanocytes and manifested clinically as lesions of different colo…

Differential Diagnosis in Dermatopathology

Trichoepithelioma vs. Infundibulocystic basal-cell carcinoma

Hamartomas (“congenital” melanocytic nevi) and benign neoplasms (“acquired” melanocytic nevi) of various specific types, all of which are composed of abnormal melanocytes and manifested clinically as lesions of different colo…

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