PMID- 25227285 OWN - NLM STAT- MEDLINE DCOM- 20160606 LR - 20211021 IS - 1435-5604 (Electronic) IS - 0914-8779 (Linking) VI - 33 IP - 5 DP - 2015 Sep TI - Ultrasonographic evaluation of parathyroid hyperplasia in multiple endocrine neoplasia type 1: Positive correlation between parathyroid volume and circulating parathyroid hormone concentration. PG - 523-9 LID - 10.1007/s00774-014-0614-6 [doi] AB - There are few reports on parathyroid ultrasonography of multiple endocrine neoplasia type 1 (MEN1). This study investigated the ultrasonographic features of parathyroid glands in 10 patients with MEN1 who underwent preoperative neck ultrasonography and parathyroidectomy between 2006 and 2010 at Toranomon Hospital. We retrospectively analyzed clinical features, laboratory and ultrasonographic data, and pathological diagnosis. A total of 38 parathyroid glands were surgically removed (three to five glands from each patient). All removed parathyroids were pathologically diagnosed as hyperplasia. Seven cases (70.0 %) had adenomatous thyroid nodules. Twenty-five enlarged parathyroid glands (65.8 %) were detected by preoperative ultrasonography with a detection rate of 81.8 % (9/11) and 59.3 % (16/27) for patients without and with adenomatous nodules, respectively. Total parathyroid gland weight and potentially predictable total parathyroid volume by preoperative ultrasonography were significantly correlated with preoperative serum intact parathyroid hormone (iPTH) concentration (R = 0.97, P < 0.001 and R = 0.96, P < 0.001, respectively). The equation used for prediction of the total volume by ultrasonography was 15 x iPTH (pg/ml) - 1,000 and that for total weight was 20 x iPTH (pg/ml) - 1,400. Although adenomatous nodules often coexisted with MEN1 and made identification of enlarged parathyroid glands by ultrasonography difficult, the positive correlation between the predictable parathyroid volume by ultrasonography and serum iPTH suggests that their measurement is useful in the preoperative detection and localization of enlarged parathyroid glands in patients with MEN1. Furthermore, the presence of parathyroid glands that should be resected can be predicted before surgery using the equation proposed here. FAU - Tamiya, Hiroyuki AU - Tamiya H AD - Division of Endocrinology, Toranomon Hospital Endocrine Center, 2-2-2 Toranomon Minato-ku, 105-8470, Tokyo, Japan, tamiyatky@gmail.com. FAU - Miyakawa, Megumi AU - Miyakawa M FAU - Takeshita, Akira AU - Takeshita A FAU - Miura, Daishu AU - Miura D FAU - Takeuchi, Yasuhiro AU - Takeuchi Y LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140917 PL - Japan TA - J Bone Miner Metab JT - Journal of bone and mineral metabolism JID - 9436705 RN - 0 (Parathyroid Hormone) RN - 0 (Radiopharmaceuticals) SB - IM MH - Adult MH - Female MH - Humans MH - Hyperplasia/*blood/*diagnostic imaging/pathology MH - Male MH - Middle Aged MH - Multiple Endocrine Neoplasia Type 1/*blood/*diagnostic imaging/pathology MH - Parathyroid Glands/metabolism/*pathology MH - Parathyroid Hormone/*blood MH - Parathyroid Neoplasms/blood/pathology/ultrastructure MH - Parathyroidectomy/methods MH - Radiopharmaceuticals/administration & dosage MH - Retrospective Studies MH - Ultrasonography EDAT- 2014/09/18 06:00 MHDA- 2016/06/09 06:00 CRDT- 2014/09/18 06:00 PHST- 2014/04/10 00:00 [received] PHST- 2014/06/26 00:00 [accepted] PHST- 2014/09/18 06:00 [entrez] PHST- 2014/09/18 06:00 [pubmed] PHST- 2016/06/09 06:00 [medline] AID - 10.1007/s00774-014-0614-6 [doi] PST - ppublish SO - J Bone Miner Metab. 2015 Sep;33(5):523-9. doi: 10.1007/s00774-014-0614-6. Epub 2014 Sep 17.