title: Pheochromocytoma: an unusual presentation and sequela.
abstract: A 40-year-old male presenting with exercise-induced headaches was found to have a pheochromocytoma which was subsequently removed. His blood pressure was never recorded as elevated. He went on to develop recurrence of asthma, which had been absent for at least 20 years, 48 h postoperatively. This is the first case of pheochromocytoma manifesting as exercise-induced headache in the absence of detectable hypertension.
authors.affiliation: Department of Family Medicine, University of Calgary, Alberta.
authors.forename: R W
authors.initials: RW
authors.lastname: Swanson
authors.forename: K R
authors.initials: KR
authors.lastname: Haight
authors.forename: T W
authors.initials: TW
authors.lastname: Wilson
authors.forename: N
authors.initials: N
authors.lastname: Sher
mesh_terms: D000310:Adrenal Gland Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D000328:Adult; D001249:Asthma / Q000209:etiology; D015444:Exercise; D006261:Headache / Q000209:etiology; D006801:Humans; D008297:Male; D010673:Pheochromocytoma / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D011183:Postoperative Complications