Computed Tomography Versus Angiography in the Localization of Pheochromocytoma

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Abstract
Patients (8) studied by computed tomography (CT) and arteriography and 1 patient studied by CT only are reported. The value of both methods in the preoperative localization of pheochromocytoma is compared. Single adrenal tumors were found in 6 adults (4 were right-sided and 2 were left-sided). A 15 yr old child had bilateral adrenal tumors, and a 12 yr old child had a left adrenal tumor. An extraadrenal pheochromocytoma was found in another adult patient. CT demonstrated all but 1 tumor (a right adrenal lesion measuring 2.5 cm in the child with bilateral pheochromocytomas, both shown by angiography). Arteriography, including subtraction films, demonstrated all but 1 tumor (an avascular extraadrenal pheochromocytoma measuring 4 .times. 8 cm shown by CT). Apparently, both CT and angiography contribute significant information in the preoperative evaluation of suspected pheochromocytoma patients.

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