{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,4,3]],"date-time":"2022-04-03T20:40:02Z","timestamp":1649018402029},"reference-count":14,"publisher":"FapUNIFESP (SciELO)","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Arq Bras Endocrinol Metab"],"published-print":{"date-parts":[[2012,6]]},"abstract":"<jats:p>Primary hyperparathyroidism (PHPT) is the most common cause of hypercalcemia in outpatients. It is more common in females, after menopause, and the prevalence is 1 to 4:1000 in the general population. Patients with PHPT have abnormal regulation of PTH secretion, resulting in elevated serum calcium and inappropriately high or normal PTH in relation to the calcium value. Sporadic PTH-secreting adenoma alone accounts for 90% of cases of PHPT, while multiglandular hyperplasia is more common in familial hyperparathyroidism syndromes (5%) and parathyroid carcinomas represent less than 1% of cases. Only after making sure there is functional autonomy of one or more parathyroid glands, localization imaging tests should be performed to guide a possible surgical procedure. It is important to highlight that these tests have limitations and can yield false-positive and false-negative results. There are cases in which the parathyroid gland is difficult to be located, requiring a combination of imaging methods for pre-operative localization, such as 99mTc-pertechnetate, SPECT, SPECT\/CT, and US. We describe the case of a 50-year-old female patient diagnosed with PHPT, who underwent a surgical procedure without success, with maintenance of hypercalcemia and hyperparathyroidism. In this case, the hyperfunctioning parathyroid was located in the retrotracheal region only after scintigraphy combined with SPECT\/CT were used.<\/jats:p>","DOI":"10.1590\/s0004-27302012000400008","type":"journal-article","created":{"date-parts":[[2012,7,12]],"date-time":"2012-07-12T02:32:14Z","timestamp":1342060334000},"page":"265-269","source":"Crossref","is-referenced-by-count":0,"title":["Can SPECT change the surgical strategy in patients with primary hyperparathyroidism?"],"prefix":"10.1590","volume":"56","author":[{"given":"Let\u00edcia","family":"Iervolino","sequence":"first","affiliation":[{"name":"Santa Casa de S\u00e3o Paulo, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nilza Maria","family":"Scalisse","sequence":"additional","affiliation":[{"name":"Santa Casa de S\u00e3o Paulo, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sergio Setsuo","family":"Maeda","sequence":"additional","affiliation":[{"name":"Santa Casa de 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