Article
The clinical challenge of MEN1 phenocopies: insights from a multicentric national retrospective study.
Journal of endocrinological investigation - 1 Mar 2026
Ruggeri Rosaria M, Benevento Elio, Hasballa Iderina, Grossrubatscher Erika Maria, Modica Roberta, Albertelli Manuela, Golisano Bianca, Guarnieri Vito, Pugliese Flavia, Guarnotta Valentina, Jaafar Simona, Lania Andrea, Prinzi Antonio, Zanata Isabella, Zatelli Maria Chiara, Colao Annamaria, Faggiano Antongiulio
Abstract excerpt
Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant disorder caused by MEN1 gene mutations, typically involving primary hyperparathyroidism (PHPT), pancreatic neuroendocrine tumors (PanNETs), and/or pituitary neuroendocrine tumors (PitNETs). However, 10-30% of patients with MEN1-like features lack identifiable MEN1 mutations and are classified as phenocopies. This retrospective multicenter study,...
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