PMID- 32190804 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200928 IS - 2472-1972 (Electronic) IS - 2472-1972 (Linking) VI - 4 IP - 4 DP - 2020 Apr 1 TI - Features of Multiple Endocrine Neoplasia Type 1 and 2A in a Patient with Both RET and MEN1 Germline Mutations. PG - bvaa020 LID - 10.1210/jendso/bvaa020 [doi] LID - bvaa020 AB - The coexistence of multiple endocrine neoplasia type 1 (MEN1) and type 2A (MEN2A) is a rare occurrence and has been reported only twice in the literature. We present a patient with primary hyperparathyroidism and medullary thyroid cancer with strong family history of both MEN1- and MEN2A-associated conditions. Genetic testing showed the patient had a novel MEN1 loss-of-function mutation, c0.525_526insTT (p.Ala176Leufs*10), and an uncommon Cys630Tyr RET mutation. This case highlights the importance of obtaining a detailed family history when heritable endocrine disorders are suspected. CI - (c) Endocrine Society 2020. FAU - Brown, Spandana J AU - Brown SJ AUID- ORCID: 0000-0003-0233-869X AD - Department of Medicine, Houston Methodist Hospital, Houston, TX, and Weill Cornell Medicine, New York, NY. FAU - Riconda, Daniel L AU - Riconda DL AUID- ORCID: 0000-0003-4553-5722 AD - Molecular and Human Genetics, Baylor College of Medicine, Houston, TX. FAU - Zheng, Feibi AU - Zheng F AD - Department of Surgery, Houston Methodist Hospital, Houston, TX, and Weill Cornell Medicine, New York, NY. FAU - Jackson, Gilchrist L AU - Jackson GL AD - Department of Surgery, Houston Methodist Hospital, Houston, TX, and Weill Cornell Medicine, New York, NY. FAU - Suo, Liye AU - Suo L AUID- ORCID: 0000-0001-8838-5969 AD - Department of Pathology & Genomic Medicine, Houston Methodist Hospital, Houston, TX, and Weill Cornell Medicine, New York, NY. FAU - Robbins, Richard J AU - Robbins RJ AUID- ORCID: 0000-0002-8107-5199 AD - Department of Medicine, Houston Methodist Hospital, Houston, TX, and Weill Cornell Medicine, New York, NY. LA - eng PT - Case Reports DEP - 20200218 PL - United States TA - J Endocr Soc JT - Journal of the Endocrine Society JID - 101697997 PMC - PMC7067549 OTO - NOTNLM OT - MEN1 OT - MEN1 OT - MEN2A OT - RET OT - hyperparathyroidism OT - medullary thyroid cancer EDAT- 2020/03/20 06:00 MHDA- 2020/03/20 06:01 PMCR- 2020/02/18 CRDT- 2020/03/20 06:00 PHST- 2020/01/02 00:00 [received] PHST- 2020/02/15 00:00 [accepted] PHST- 2020/03/20 06:00 [entrez] PHST- 2020/03/20 06:00 [pubmed] PHST- 2020/03/20 06:01 [medline] PHST- 2020/02/18 00:00 [pmc-release] AID - bvaa020 [pii] AID - 10.1210/jendso/bvaa020 [doi] PST - epublish SO - J Endocr Soc. 2020 Feb 18;4(4):bvaa020. doi: 10.1210/jendso/bvaa020. eCollection 2020 Apr 1.