Pheochromocytoma of the urinary bladder: a case report

Abstract

66歳女.膀胱褐色細胞腫の1例を報告した.降圧療法により血圧は正常に保たれ特徴的な症候もなかったので褐色細胞腫を疑うことなくエコーガイド下に経腹的針生検を行った.穿刺直後に顕著な血圧上昇(260/130mmHg)を生じた.病理診断は褐色細胞腫であった.膀胱部分切除後, 降圧療法なしで血圧は正常となり血清ノルエピネフリンも正常化した.壁内膀胱腫瘍患者において, 特に降圧療法で正常血圧の場合, 褐色細胞腫を疑うべきである

We present a 66-year old female patient with pheochromocytoma of the urinary bladder. We performed transabdominal needle biopsy of the tumor without suspicion of pheochromocytoma because of her well-controlled blood pressure and no characteristic symptoms following administration of antihypertensive medication. Hypertensive crisis (260/130 mmHg) occurred just after the needle insertion. The diagnosis was pheochromocytoma. The norepinephrine level in the serum and her blood pressure normalized without antihypertensive medication after partial cystectomy. Pheochromocytoma should be suspected in cases of intramural bladder tumors, especially in a normotensive patients receiving antihypertensive medication.