Superficial Epithelioma with Sebaceous Differentiation

**Semantic type:** Neoplastic Process

**Definition:** A rare benign epithelial neoplasm characterized by the presence of a superficial and multilobular proliferation of neoplastic epithelial cells in the upper dermis with broad attachments to the basal layer of the epidermis. The tumor has well-defined borders. Sebaceous differentiation is present with mature sebocytes arranged in clusters or single cells at the periphery of the tumor.

**Synonyms:** - SESD