Which of the following statements is true with respect to pheochromocytoma?
- Pheochromocytoma associated with MEN IIa is usually unilateral and rarely malignant; therefore, unilateral exploration through a posterior flank incision is usually sufficient
- Clonidine fails to suppress basal plasma-catecholamine levels in patients with pheochromocytoma
- NP-59 (131I-6 b-iodomethyl-19-norcholesterol) is taken up as cholesterol by the adrenal medulla
- The ratio of plasma 3,4-dihydroxyphenoglycol (DHPG) to norepinephrine is generally elevated in patients with pheochromocytoma compared to patients with essential hypertension
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Category:
Endocrinology MCQs
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