[A clinico-pathological entity reflecting the multiple polyps throughout the gastrointestinal tract created as a result of involvement by a non-Hodgkin lymphoma. Typically, mantle cell lymphomas involving the gastrointestinal tract give rise to multifocal lymphomatous polyposis. Importantly, other histologic subtypes of non-Hodgkin lymphoma can also produce this clinico-pathological entity. (WHO, 2000) — 2003 ( NCI )]
UMLS (NCI) C0334638