Obstructive Sleep Apnea Presenting as Pseudopheochromocytoma

摘要: A 39-year-old man with a history of poorly controlled hypertension presented 2-year fatigue, daytime somnolence, and intermittent episodes diaphoresis palpitations. Episodes were self-limiting, lasting approximately 5-10 minutes occurred several times per month, most notably at night. Laboratory evaluation was significant for elevated 24-h urinary catecholamine levels, suggestive pheochromocytoma. However, thorough imaging failed to identify catecholamine-secreting tumor. Subsequent polysomnography revealed severe obstructive sleep apnea, an apnea-hypopnea index 112 events/h. After one month continuous positive airway pressure therapy, the patient experienced resolution his presenting symptoms, improved blood control normalization levels. This case highlights disordered breathing as potentially reversible cause pseudopheochromocytoma. Citation: Cheezum MK; Lettieri CJ. Obstructive apnea pseudopheochromocytoma. J Clin Sleep Med 2010;6(2):190-191.