Localization of pituitary adenomas by using intraoperative ultrasound in patients with Cushing's disease and no demonstrable pituitary tumor on magnetic resonance imaging.

摘要: Object. Pituitary surgery has been reported to produce remission of Cushing's disease with preservation pituitary function in only 60 70% patients. The inability identify an adenoma accounts for most failed sellar explorations. Most negative surgical explorations occur patients whom magnetic resonance (MR) imaging the demonstrates normal findings, which happens at least 35 45% disease. Methods. To examine usefulness intraoperative ultrasonography (IOUS) identifying no demonstrable tumor (negative findings) on MR imaging, we prospectively assessed results IOUS 68 a (59 patients) or equivocal (nine image from consecutive series 107 (64%). We compared findings and outcomes these group was not availab...