"Incidental"adrenal cyst: a correctable lesion possibly associated with hypertension.

We have described a patient with hypertension discovered during treatment of a sprained ankle. A large right suprarenal cystic mass, without evidence of endocrine activity, was localized by several radiographic technics. A large serous adrenal cyst was excised by a right flank approach, sparing the residual right adrenal gland. The patient's blood pressure responded to manipulation of the cyst and since resection has been easily controlled for two years. This suggests that some adrenal cysts may have physiologic significance besides their importance as space-occupying masses.