Endocrine Abstracts

Introduction: Thyrotropin-secreting pituitary tumors (TSH-omas) are a rare disorder and an infrequent cause of hyperthyroidism. The prevalence in the general population being 1 to 2 cases per million. However, recents studies have demonstrated an increase of TSH-omas over time. The increased number of cases principally results from the ultrasensitive TSH immunometric assays and from improved general practioner endocrinologist awaress. There is an inappropriate secretion of TSH...