TY - JOUR AU - Naveen Naz AU - Josephine A D'Abbondanza AU - Maya Suzette Anderson AU - Altaf Taher AU - Samih S Salama PY - 2026 DA - 2026/01/04 TI - Case Report - Basal Cell Carcinoma of Skin with Myoepithelial Differentiation (BCC-MED) : A Rare Diagnostic Entity JO - Case Reports and Reviews VL - 6 IS - 1 AB - Basal cell carcinoma (BCC) with myoepithelial differentiation is a rare histopathologic variant that may pose significant diagnostic challenges because of its unusual cytomorphology and broad immunophenotype. We report the case of an 83-year-old man with multiple facial cutaneous malignancies, including the current unusual BCC of the left upper cheek showing prominent myoepithelial differentiation. The lesion was initially interpreted as a poorly differentiated malignant neoplasm with a broad differential diagnosis including melanoma and plasmacytoid squamous cell carcinoma. Subsequent histochemical and immunohistochemical studies supported the diagnosis of BCC with myoepithelial differentiation. We discuss the clinicopathologic features, immunophenotype, differential diagnosis, and current understanding of this rare entity in the context of the existing literature. SN - 2693-1516 UR - https://dx.doi.org/10.33425/2693-1516.1070 DO - 10.33425/2693-1516.1070