Gallbladder Mucinous Cystic Neoplasm, Low Grade

**Semantic type:** Neoplastic Process

**Definition:** A non-invasive neoplasm that arises from the gallbladder and is characterized by the presence of neoplastic columnar mucin-producing epithelial cells that form papillae, cystic changes, underlying ovarian-type stroma, and mild dysplasia.

**Synonyms:** - Gallbladder MCN with Low Grade Intraepithelial Neoplasia - Gallbladder Mucinous Cystic Neoplasm with Low Grade Intraepithelial Neoplasia - Gallbladder Mucinous Cystic Neoplasm, Low-Grade