Juvenile Breast Papillomatosis

**Semantic type:** Neoplastic Process

**Definition:** A benign, usually solitary, well circumscribed multicystic neoplasm that arises from the breast and typically affects young females. The cysts are lined by papillary proliferations that contain epithelial and myoepithelial layers. In a minority of cases, atypia may be present.

**Synonyms:** - Juvenile Papillomatosis of Breast - Juvenile Papillomatosis of the Breast - Swiss Cheese Disease - Swiss Cheese Disease