Search Results for: squamous-cell carcinoma

Histologic Diagnosis of Inflammatory Skin Diseases

Subcutaneous T-cell lymphoma

…tive, and dense, patchy lymphoplasmacytic infiltrates in the dermis and subcutaneous fat. Histiocytosis X (Langerhans” cell histiocytosis) consists of a dense infiltrate of abnormal Langerhans” cells characterized by large, pale,…

Differential Diagnosis in Dermatopathology

Granular-cell tumor vs. Xanthoma

Extramammary Paget’s disease is an apocrine carcinoma that begins within the epidermis and presents itself clinically as a patch or a subtle plaque that extends centrifugally for many years before becoming a readily discernible thick plaque,…

Differential Diagnosis in Dermatopathology

Pale-cell acanthoma vs. Psoriasis, plaque expression

Extramammary Paget’s disease is an apocrine carcinoma that begins within the epidermis and presents itself clinically as a patch or a subtle plaque that extends centrifugally for many years before becoming a readily discernible thick plaque,…

Regressing basal-cell carcinioma masquerading as benign lichenoid keratosis

Regressing basal-cell carcinioma masquerading as benign lichenoid keratosis

…0.3 and 2 mm in diameter [4]. Although “the surface is often scaly” [4], lesions are often misdiagnosed clinically as basal-cell carcinoma (BCC). According to Ackerman et al., “lichen planus-like keratosis usually presents itself as a small papule…

Differential Diagnosis in Dermatopathology

Trichoadenoma vs. Microcystic adnexal carcinoma

Extramammary Paget’s disease is an apocrine carcinoma that begins within the epidermis and presents itself clinically as a patch or a subtle plaque that extends centrifugally for many years before becoming a readily discernible thick plaque,…