{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,26]],"date-time":"2025-10-26T22:48:45Z","timestamp":1761518925240},"reference-count":13,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2005,12]]},"abstract":"<jats:p content-type=\"fine-print\">\u2713 In most cases of pituitary cyst there are no clinical symptoms and the lesions are found incidentally. The authors report the case of a 60-year-old man with a pituitary cyst causing visual disturbance and hyponatremia. The patient presented with appetite loss and general fatigue. On admission, blood workup showed severe hyponatremia (112 mEq\/L), and bitemporal hemianopsia was observed on neurological examination. Magnetic resonance imaging revealed an intra- and suprasellar region cystic mass extending to the frontal base and hypothalamic area. The serum level of brain natriuretic peptide (BNP) was elevated (92 pg\/ml) with polyuria and excessive Na excretion. Transsphenoidal surgery was performed to drain the cyst. The cyst wall was partially excised and the cystic fluid was aspirated. The secretion of BNP normalized postoperatively, and the hyponatremia and visual symptoms resolved. Histological examination, including an electron microscopy study, confirmed the diagnosis of a simple cyst. This appears to be the first reported case of a pituitary simple cyst associated with hyponatremia and an elevated BNP level.<\/jats:p>","DOI":"10.3171\/jns.2005.103.6.1092","type":"journal-article","created":{"date-parts":[[2009,5,13]],"date-time":"2009-05-13T18:02:48Z","timestamp":1242237768000},"page":"1092-1094","source":"Crossref","is-referenced-by-count":3,"title":["Pituitary cyst presenting with hyponatremia and increased secretion of brain natriuretic peptide"],"prefix":"10.3171","volume":"103","author":[{"given":"Jae-Hyun","family":"Son","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takamitsu","family":"Fujimaki","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yoshiaki","family":"Tsuchiya","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Teruyuki","family":"Ishii","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kiyoshi","family":"Takagi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tadayoshi","family":"Nakagomi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"key":"b1","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"8","DOI":"10.3171\/jns.1984.60.1.0008","article-title":"Transsphenoidal treatment of non-neoplastic intrasellar cysts. A report of 38 cases.","volume":"60","author":"Baskin","year":"1984"},{"key":"b2","series-title":"Lancet","doi-asserted-by":"publisher","first-page":"245","DOI":"10.1016\/S0140-6736(96)08093-2","article-title":"Secretion of brain natriuretic peptide in patients with aneurysmal subarachnoid haemorrhage.","volume":"349","author":"Berendes","year":"1997"},{"key":"b3","series-title":"Stroke","doi-asserted-by":"publisher","first-page":"577","DOI":"10.1161\/01.STR.22.5.577","article-title":"Suprasellar and intraventricular blood predict elevated plasma atrial natriuretic factor in subarachnoid hemorrhage.","volume":"22","author":"Diringer","year":"1991"},{"key":"b4","series-title":"No Shinkei","first-page":"1019","article-title":"[Relationship between cardiac natriuretic peptide (ANP\/BNP) and fluid intake in patients with subarachnoid hemorrhage.]","volume":"52","author":"Fukui","year":"2000"},{"key":"b5","series-title":"N Engl J Med","doi-asserted-by":"publisher","first-page":"321","DOI":"10.1056\/NEJM199807303390507","article-title":"Natriuretic peptides.","volume":"339","author":"Levin","year":"1998"},{"key":"b6","series-title":"Pathology","first-page":"123","article-title":"Cysts of sellar and pharyngeal hypophyses.","volume":"3","author":"McGrath","year":"1971"},{"key":"b7","series-title":"No Shinkei Geka","first-page":"501","article-title":"[Differential diagnosis of hyponatremia following subarachnoid hemorrhage.]","volume":"26","author":"Ogawasara","year":"1998"},{"key":"b8","series-title":"No Shinkei Geka","first-page":"223","article-title":"[Cerebral polyuric hyponatremia-discussion of a new syndrome with disturbance of electrolyte balance of central origin.]","volume":"5","author":"Oi","year":"1977"},{"key":"b9","series-title":"Anat Rec","doi-asserted-by":"publisher","first-page":"379","DOI":"10.1002\/ar.1091040402","article-title":"On the presence of cysts in the human pituitary.","volume":"104","author":"Shanklin","year":"1949"},{"key":"b10","series-title":"Surg Neurol","doi-asserted-by":"publisher","first-page":"274","DOI":"10.1016\/S0090-3019(81)80007-9","article-title":"Benign intrasellar cysts.","volume":"15","author":"Spaziante","year":"1981"},{"key":"b11","series-title":"Stroke","doi-asserted-by":"publisher","first-page":"118","DOI":"10.1161\/01.STR.31.1.118","article-title":"Brain natriuretic peptide and cerebral vasospasm in subarachnoid hemorrhage. Clinical and TCD correlations.","volume":"31","author":"Sviri","year":"2000"},{"key":"b12","series-title":"Peptides","doi-asserted-by":"publisher","first-page":"121","DOI":"10.1016\/0196-9781(92)90149-W","article-title":"Human brain natriuretic peptide-like immunoreactivity in human brain.","volume":"13","author":"Takahashi","year":"1992"},{"key":"b13","series-title":"Stroke","doi-asserted-by":"publisher","first-page":"1519","DOI":"10.1161\/01.STR.22.12.1519","article-title":"Atrial natriuretic factor and salt wasting after aneurysmal subarachnoid hemorrhage.","volume":"22","author":"Wijidicks","year":"1991"}],"container-title":["Journal of Neurosurgery"],"original-title":[],"link":[{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg\/103\/6\/article-p1092.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg\/103\/6\/article-p1092.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg\/103\/6\/article-p1092.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,7,3]],"date-time":"2022-07-03T16:51:48Z","timestamp":1656867108000},"score":1,"resource":{"primary":{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg\/103\/6\/article-p1092.xml"}},"subtitle":["Case report"],"short-title":[],"issued":{"date-parts":[[2005,12]]},"references-count":13,"journal-issue":{"issue":"6"},"URL":"https:\/\/doi.org\/10.3171\/jns.2005.103.6.1092","relation":{},"ISSN":["0022-3085"],"issn-type":[{"value":"0022-3085","type":"print"}],"subject":[],"published":{"date-parts":[[2005,12]]}}}