Multiple Endocrine Neoplasia Type 4

**Semantic type:** Neoplastic Process

**Definition:** An autosomal dominant tumor syndrome caused by germline CDKN1B mutations that result in a phenotype similar to that of multiple endocrine neoplasia type 1, characterized by endocrine neoplasms, particularly in the parathyroid glands, pituitary, and pancreas. (WHO 2017)

**Synonyms:** - MEN 4 - Multiple Endocrine Neoplasia Type 1-Like Syndrome