%0 Journal Article %T Undescended parathyroid adenomas as cause of persistent hyperparathyroidism %A Antonio Sitges-Serra %A Germ¨˘n Mateu %A Juan J. Sancho %A Leyre Lorente-Poch %A Paula Rioja %J SCIE-indexed Journal %D 2015 %X Undescended parathyroid adenomas (UPA) are very uncommon cause of primary and secondary hyperparathyroidism (HPT). They are far more represented in series of parathyroid reoperations for recurrent or persistent HPT after a failed initial cervical exploration. If an inferior gland has not been identified at the initial operation in an orthotopic or low thymic location, an undescended parathyroid gland should be suspected %U http://gs.amegroups.com/article/view/6861/7725