PMID- 26564120 OWN - NLM STAT- MEDLINE DCOM- 20160921 LR - 20190201 IS - 1757-790X (Electronic) IS - 1757-790X (Linking) VI - 2015 DP - 2015 Nov 12 TI - VIPoma with multiple endocrine neoplasia type 1 identified as an atypical gene mutation. LID - 10.1136/bcr-2015-213016 [doi] LID - bcr2015213016 AB - A 47-year-old man presented with persistent diarrhoea and hypokalaemia. CT revealed 4 pancreatic tumours that appeared to be VIPomas, because the patient had an elevated plasma vasoactive intestinal polypeptide level. MRI showed a low-intensity area in the pituitary suggestive of a pituitary tumour, and a parathyroid tumour was detected by ultrasonography and 99Tc-MIBI scintigraphy. Given these results, the patient was diagnosed with multiple endocrine neoplasia type 1 (MEN1) and scheduled for surgery. MEN1 is an autosomal dominant disorder associated with MEN1 mutations. Genetic testing indicated that the patient had a MEN1 gene mutation; his 2 sons had the same mutations. Most MEN1 tumours are benign, but some pancreatic and thymic tumours could become malignant. Without treatment, such tumours would result in earlier mortality. Despite its rarity, we should perform genetic testing for family members of patients with MEN1 to identify mutation carriers and improve the patients' prognosis. CI - 2015 BMJ Publishing Group Ltd. FAU - Fujiya, Atsushi AU - Fujiya A AD - Department of Diabetology and Nephrology, Ogaki Municipal Hospital, Ogaki, Japan. FAU - Kato, Makoto AU - Kato M AD - Department of Diabetology and Nephrology, Ogaki Municipal Hospital, Ogaki, Japan. FAU - Shibata, Taiga AU - Shibata T AD - Department of Diabetology and Nephrology, Ogaki Municipal Hospital, Ogaki, Japan. FAU - Sobajima, Hiroshi AU - Sobajima H AD - Department of Diabetology and Nephrology, Ogaki Municipal Hospital, Ogaki, Japan. LA - eng PT - Case Reports PT - Journal Article DEP - 20151112 PL - England TA - BMJ Case Rep JT - BMJ case reports JID - 101526291 RN - 0 (MEN1 protein, human) RN - 0 (Proto-Oncogene Proteins) SB - IM MH - Diarrhea/*etiology MH - *Genetic Testing MH - Humans MH - Hypokalemia/*etiology MH - Male MH - Middle Aged MH - *Mutation MH - Pancreatic Neoplasms/*diagnosis/genetics/pathology/surgery MH - Pancreaticoduodenectomy MH - Parathyroid Neoplasms/*diagnosis/genetics/pathology/surgery MH - Prognosis MH - Proto-Oncogene Proteins/*genetics MH - Treatment Outcome MH - Vipoma/*diagnosis/genetics/pathology/surgery PMC - PMC4654027 EDAT- 2015/11/14 06:00 MHDA- 2016/09/23 06:00 PMCR- 2017/11/12 CRDT- 2015/11/14 06:00 PHST- 2015/11/14 06:00 [entrez] PHST- 2015/11/14 06:00 [pubmed] PHST- 2016/09/23 06:00 [medline] PHST- 2017/11/12 00:00 [pmc-release] AID - bcr-2015-213016 [pii] AID - 10.1136/bcr-2015-213016 [doi] PST - epublish SO - BMJ Case Rep. 2015 Nov 12;2015:bcr2015213016. doi: 10.1136/bcr-2015-213016.