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

Subcutaneous T-cell lymphoma Synonyms Subcutaneous panniculitis-like lymphoma Presentation stereotypical Age and sex Mostly women in the third and fourth decades of life Distribution of lesions Extremities, trunk, face, neck, and breasts Arrangement…

Dermatology Practical & Conceptual

Incidental Merkel cell carcinoma in a cutaneous horn: a case report

Abstract Merkel cell carcinoma (MCC) is a rare cutaneous neuroendocrine malignancy, which usually presents as an asymptomatic, rapidly growing, firm nodule on sun-damaged skin. We present a 93-year-old female who presented with a “cutaneous horn” on…

Differential Diagnosis in Dermatopathology

Pale-cell acanthoma vs. Psoriasis, plaque expression

Noninflammatory scaly disorders in which polygonal gray or brown scales tend to be elevated at their periphery, causing them to appear to be separated from contiguous scales, findings that are seen in three conditions, namely, ichthyosis vulgaris (a…