{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,22]],"date-time":"2025-10-22T05:11:34Z","timestamp":1761109894699},"reference-count":45,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[1990,11]]},"abstract":"<jats:p content-type=\"fine-print\">\u2713 Thyrotropin-secreting pituitary adenomas have been diagnosed more frequently as radiographic techniques and biochemical assays have improved; however, they remain uncommon and are unfamiliar to most neurosurgeons. This report concerns eight patients with hyperthyroidism, inappropriately elevated levels of serum thyrotropin and <jats:italic>\u03b1<\/jats:italic>-subunit, and radiographic evidence of pituitary tumor. All underwent surgery and had pathological confirmation of a thyrotropin-secreting adenoma, and most had been subjected to prior ablation of the thyroid gland. Only one tumor was a microadenoma; the others ranged in size from 1.4 to 12 cm, and invasion of parasellar structures was common. Thyrotropin, triiodothyronine, thyroxine, and <jats:italic>\u03b1<\/jats:italic>-subunit were measured preoperatively and at intervals postoperatively. Coexistent hormonal abnormalities (which occurred in all patients) included acromegaly and hyperprolactinemia and were also monitored. All four patients who had tumors less than 2 cm in diameter remain alive. Complete extirpation of tumor in these patients produced rapid correction of all hormonal abnormalities and resolution of clinical hyperthyroidism. The other four patients had larger invasive tumors: two died soon after surgery, one died of disseminated tumor 8 years after presentation, and one remains alive with residual tumor.<\/jats:p>\n<jats:p content-type=\"fine-print\">Tumors secreting thyroid-stimulating hormone are less easily cured by surgery than are other types of pituitary adenoma because of the large size and invasive features that many attain during the delay to diagnosis; medical therapy can subdue the tumor but not cure it. The experience with these patients establishes the importance of early diagnosis and surgical excision for successful treatment, and demonstrates the utility of modern diagnostic techniques for finding these lesions. As occurs in Nelson's syndrome after adrenalectomy for Cushing's disease, ablation of the target organ may allow the tumor to convert to a more clinically malignant form which is resistant to cure.<\/jats:p>","DOI":"10.3171\/jns.1990.73.5.0674","type":"journal-article","created":{"date-parts":[[2009,5,13]],"date-time":"2009-05-13T18:15:09Z","timestamp":1242238509000},"page":"674-683","source":"Crossref","is-referenced-by-count":51,"title":["Surgical treatment of thyrotropin-secreting pituitary adenomas"],"prefix":"10.3171","volume":"73","author":[{"given":"Ian E.","family":"McCutcheon","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bruce D.","family":"Weintraub","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Edward H.","family":"Oldfield","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"key":"b1","series-title":"Arch Otorhinolaryngol","doi-asserted-by":"publisher","first-page":"135","DOI":"10.1007\/BF00454305","article-title":"TSH-secreting pituitary tumor.","volume":"238","author":"Anniko","year":"1983"},{"key":"b2","series-title":"NY State J Med","first-page":"1737","article-title":"Pituitary tumor with primary hypothyroidism.","volume":"75","author":"Balsam","year":"1975"},{"key":"b3","series-title":"J Clin Endocrinol Metab","doi-asserted-by":"publisher","first-page":"704","DOI":"10.1210\/jcem-62-4-704","article-title":"Endocrine, biochemical, and morphological studies of a pituitary adenoma secreting growth hormone, thyrotropin (TSH), and \u03b1-subunit: evidence for secretion of TSH with increased bioactivity.","volume":"62","author":"Beck-Peccoz","year":"1986"},{"key":"b4","series-title":"Rev Med Liege","first-page":"396","article-title":"Les adenomes hypophysaires a TSH.","volume":"43","author":"Beckers","year":"1988"},{"key":"b5","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"244","DOI":"10.3171\/jns.1987.66.2.0244","article-title":"Hormone production in clinically nonfunctioning pituitary adenomas.","volume":"66","author":"Black","year":"1987"},{"key":"b6","series-title":"N Engl J Med","doi-asserted-by":"publisher","first-page":"12","DOI":"10.1056\/NEJM198707023170103","article-title":"Response of thyrotropin-secreting pituitary adenomas to a long-acting somatostatin analogue.","volume":"317","author":"Comi","year":"1987"},{"key":"b7","series-title":"Arch Intern Med","doi-asserted-by":"publisher","first-page":"1544","DOI":"10.1001\/archinte.1982.00340210142025","article-title":"Hypothyroidism secondary to biologically inactive thyroid-stimulating hormone secretion by a pituitary chromophobe adenoma.","volume":"142","author":"Dickstein","year":"1982"},{"key":"b8","series-title":"Hormone Res","doi-asserted-by":"publisher","first-page":"79","DOI":"10.1159\/000180687","article-title":"Inappropriate secretion of thyrotropin by the pituitary.","volume":"26","author":"Faglia","year":"1987"},{"key":"b9","series-title":"Am J Med","doi-asserted-by":"publisher","first-page":"725","DOI":"10.1016\/0002-9343(84)90302-4","article-title":"Pituitary thyrotropic adenoma associated with congenital hypothyroidism. 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