Abstract

Abstract Objective: This case underlines the importance of thoroughly investigating alternative causes for hypertension in patients with atypical presentations, regardless of their age and risk factors. Design and method: Clinical case. Results: We present the case of a 68 year old woman without known cardiovascular diseases who came to the ER complaining of headaches, palpitations and chest pain of two hours duration. Upon admission, her blood pressure was 300/150 mmHg - overlapping values in all limbs with no asymmetric pulse. Heart rate was 140 bpm, rhythmic and without heart murmurs, abdomen without murmurs or palpable masses. Her ECG showed diffuse ST segment depression and high sensitivity troponin level at 0 h was 258 ng/L. Cardiac echo showed no wall motion abnormalities and no hypertrophy of the left ventricle. Her BP was acutely controlled with ACEi and iv nitroglycerin. Two hours after admission her BP returned to normal and remained within normal range without medication. Her ECG showed normal sinus rhythm with no other pathological findings. Coronary angiography was performed the next day and showed no atherosclerotic lesions. At this stage, her diagnosis was type 2 MI caused by severely elevated BP. Blood and urine tests revealed high levels of serum catecholamines and urinary normetanephrines - over 4000 micrograms/24 h. Abdominal ultrasound found a mass near her right kidney. Abdominal CT confirmed the presence of a nodular 5 × 3 cm mass in the right adrenal gland, compatible with a pheochromocytoma. She was submitted to laparoscopic adrenalectomy with normalization of her BP after the surgery. During follow-up, the patient presented with persistently normal blood pressure and normal ECG aspect without any chronic medication. Conclusions: Pheochromocytoma is a rare neuroendocrine tumour originating in the adrenal gland medulla. Sustained or paroxysmal arterial hypertension is sometimes associated with the classic triad: episodic headaches, profuse sweating and tachycardia. A timely diagnosis and an effective therapeutic strategy are important, as this is a potentially fatal disease with a very good prognosis if discovered and treated early. It should be excluded in patients with high paroxysmal BP, especially if under 20 or over 50 years old.

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