PMID- 36967793 OWN - NLM STAT- MEDLINE DCOM- 20230328 LR - 20230328 IS - 1664-2392 (Print) IS - 1664-2392 (Electronic) IS - 1664-2392 (Linking) VI - 14 DP - 2023 TI - Clinical and molecular features of four Brazilian families with multiple endocrine neoplasia type 1. PG - 1117873 LID - 10.3389/fendo.2023.1117873 [doi] LID - 1117873 AB - OBJECTIVE: Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant syndrome characterized by its clinical variability and complexity in diagnosis and treatment. We performed both clinical and molecular descriptions of four families with MEN1 in a follow-up at a tertiary center in Brasilia. METHODS: From a preliminary review of approximately 500 medical records of patients with pituitary neuroendocrine tumor (PitNET) from the database of the Neuroendocrinology Outpatient Clinic of the University Hospital of Brasilia, a total of 135 patients met the criteria of at least two affected family members. From this cohort, we have identified 34 families: only four with a phenotype of MEN1 and the other 30 families with the phenotype of familial isolated pituitary adenoma (FIPA). Eleven patients with a clinical diagnosis of MEN1 from these four families were selected. RESULTS: Variants in MEN1 gene were identified in all families. One individual from each family underwent genetic testing using targeted high-throughput sequencing (HTS). All patients had primary hyperparathyroidism (PHPT), and the second most common manifestation was PitNET. One individual had well-differentiated liposarcoma, which has been previously reported in a single case of MEN1. Three variants previously described in the database and a novel variant in exon 2 have been found. CONCLUSIONS: The study allowed the genotypic and phenotypic characterization of families with MEN1 in a follow-up at a tertiary center in Brasilia. CI - Copyright (c) 2023 Miranda, Valadares, Barra, Mesquita, de Santana, de Castro, Rita and Naves. FAU - Miranda, Isabella Santiago de Melo AU - Miranda ISM AD - Section of Endocrinology, University Hospital of Brasilia, Brasilia, Brazil. FAU - Valadares, Luciana Pinto AU - Valadares LP AD - SARAH Network Rehabilitation Hospitals, Brasilia, Brazil. FAU - Barra, Gustavo Barcelos AU - Barra GB AD - Genomics Section, Sabin Medicina Diagnostica, Brasilia, Brazil. FAU - Mesquita, Pedro Goes AU - Mesquita PG AD - Genomics Section, Sabin Medicina Diagnostica, Brasilia, Brazil. FAU - de Santana, Lidiana Bandeira AU - de Santana LB AD - Section of Endocrinology, University Hospital of Brasilia, Brasilia, Brazil. FAU - de Castro, Lucas Faria AU - de Castro LF AD - Section of Endocrinology, University Hospital of Brasilia, Brasilia, Brazil. FAU - Rita, Ticiane Henriques Santa AU - Rita THS AD - Genomics Section, Sabin Medicina Diagnostica, Brasilia, Brazil. FAU - Naves, Luciana Ansaneli AU - Naves LA AD - Section of Endocrinology, University Hospital of Brasilia, Brasilia, Brazil. LA - eng PT - Journal Article DEP - 20230310 PL - Switzerland TA - Front Endocrinol (Lausanne) JT - Frontiers in endocrinology JID - 101555782 SB - IM MH - Humans MH - *Multiple Endocrine Neoplasia Type 1/diagnosis/genetics/pathology MH - Brazil/epidemiology MH - *Growth Hormone-Secreting Pituitary Adenoma/genetics MH - *Pituitary Neoplasms/diagnosis/genetics/pathology MH - *Neuroendocrine Tumors PMC - PMC10036827 OTO - NOTNLM OT - gastroenteropancreatic tumor OT - menin gene OT - molecular test OT - multiple endocrine neoplasia type 1 OT - pituitary adenoma OT - primary hyperparathyroidism OT - variants COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2023/03/28 06:00 MHDA- 2023/03/28 19:05 PMCR- 2023/01/01 CRDT- 2023/03/27 03:16 PHST- 2022/12/07 00:00 [received] PHST- 2023/02/20 00:00 [accepted] PHST- 2023/03/28 19:05 [medline] PHST- 2023/03/27 03:16 [entrez] PHST- 2023/03/28 06:00 [pubmed] PHST- 2023/01/01 00:00 [pmc-release] AID - 10.3389/fendo.2023.1117873 [doi] PST - epublish SO - Front Endocrinol (Lausanne). 2023 Mar 10;14:1117873. doi: 10.3389/fendo.2023.1117873. eCollection 2023.