title: Evaluation of resection of pituitary microadenoma for the treatment of Cushing's disease in patients with radiologically normal sella turcica.
abstract: Six patients with Cushing's disease and a radiologically normal sella turcica have been treated by transsphenoidal hypophysectomy. Microadenomas were found and removed in five. One patient was in complete remission by 2 months and three by 6 months post-operatively. Two of the remaining patients (one with and the other without a surgically demonstrable tumour) were not cured after 8 and 15 months follow-up, respectively. Our data suggest that pituitary tumours are present in the majority of patients with Cushing's disease. The possibilities of incomplete adenomectomy or of a tumour buried within the gland should be considered in patients in whom pituitary surgery does not induce remission. In one patient, subsequently proven to have a pituitary adenoma, the disease remitted pre-operatively with cyproheptadine, suggesting hypothalamic regulation of the tumour and/or direct drug action at the pituitary level.
mesh_terms: D015065:17-Hydroxycorticosteroids / Q000652:urine; D000236:Adenoma / Q000601:surgery*; D000324:Adrenocorticotropic Hormone / Q000097:blood; D000328:Adult; D003480:Cushing Syndrome / Q000097:blood / Q000628:therapy* / Q000652:urine; D005260:Female; D006801:Humans; D006854:Hydrocortisone / Q000097:blood; D007016:Hypophysectomy; D008875:Middle Aged; D010911:Pituitary Neoplasms / Q000601:surgery*; D011859:Radiography; D012658:Sella Turcica / Q000000981:diagnostic imaging
chemical_list: D015065:17-Hydroxycorticosteroids; D000324:Adrenocorticotropic Hormone; D006854:Hydrocortisone