Mirrored Metastatic Neuroendocrine Tumor in a Mother-Daughter Duo With Mutations in the MEN1 Gene.

Multiple endocrine neoplasia (MEN) 1 syndrome may present with either of any or all neuroendocrine tumors (NETs), parathyroid and pituitary adenoma. There is a paucity of data on the intronic and exonic mutations in the MEN1 gene associated with the MEN1 syndrome. We present an interesting study of a mother-daughter duo of MEN1 who had a similar lesions distribution of metastatic NET and underwent genetic analysis to reveal a rare mutation in the MEN1 gene and both first-degree relatives presented with metastatic NET without any other syndromic manifestation of MEN1 syndrome. Both patients received peptide receptor radionuclide therapy.