Adnexal Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** A benign, precancerous, or malignant neoplasm that affects the adnexal structures of the skin (hair follicles, sebaceous glands, and sweat glands), uterus (ovaries, fallopian tubes, or surrounding connective tissue), or eye (conjunctiva, lacrimal system, and eyelid).