Dermoid Cyst

**Semantic type:** Neoplastic Process

**Definition:** A mature teratoma characterized by the presence of a cyst which is lined by mature tissue resembling the epidermis and the epidermal appendages. It occurs in the ovary, testis, and extragonadal sites including central nervous system and skin.

**Synonyms:** - Benign Cystic Teratoma - Benign Cystic Teratoma - DERMOID CYST, BENIGN - Dermoid - Dermoid - Dermoid Tumor - Dermoid cyst, NOS - Mature Cystic Teratoma - Mature Cystic Teratoma - Subcutaneous Cystic Teratoma - dermoid cyst