Meckel Diverticulum Neuroendocrine Tumor G1

**Semantic type:** Neoplastic Process

**Definition:** A well-differentiated, low-grade neuroendocrine neoplasm that arises in a Meckel diverticulum. The mitotic count is less than 2 per 2 mm2 and the Ki-67 index is less than 3%.

**Synonyms:** - Meckel Diverticulum Carcinoid Tumor - Meckel Diverticulum NET G1 - Meckel's Diverticulum Carcinoid Tumor - Meckel's diverticulum, malignant