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  • Title: Localization of functional adrenal tumors by computed tomography and venous sampling.
    Author: Dunnick NR, Doppman JL, Gill JR, Strott CA, Keiser HR, Brennan MF.
    Journal: Radiology; 1982 Feb; 142(2):429-33. PubMed ID: 7054832.
    Abstract:
    Fifty-eight patients with functional lesions of the adrenal gland underwent radiographic evaluation. Twenty-eight patients had primary aldosteronism (Conn syndrome), 20 had Cushing syndrome, and 10 had pheochromocytoma. Computed tomography (CT) correctly identified adrenal tumors in 11 (61%) of 18 patients with aldosteronomas, 6 of 6 patients with benign cortisol-producing adrenal tumors, and 5 (83%) of 6 patients with pheochromocytomas. No false-positive diagnoses were encountered among patients with adrenal adenomas. Bilateral adrenal hyperplasia appeared on CT scans as normal or prominent adrenal glands with a normal configuration; however, CT was not able to exclude the presence of small adenomas. Adrenal venous sampling was correct in each case, and reliably distinguished adrenal tumors from hyperplasia. Recurrent pheochromocytomas were the most difficult to localize on CT due to the surgical changes in the region of the adrenals and the frequent extra-adrenal locations.
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