Only few large families with multiple endocrine neoplasia type 1 (MEN1) have been documented. Here, we aimed to investigate the clinical features of a seven-generation Brazilian pedigree, which included 715 at-risk family members.
Unidade de Endocrinologia Genética, Laboratório de Investigação Médica (LIM 25), Endocrinologia, Faculdade de Medicina da Universidade de São Paulo (FMUSP), Cerqueira Cesar, São Paulo 01246-903, SP, Brasil.