乳頭浮腫にて発見された膀胱褐色細胞腫の1例

Papilledema led to the detection of pheochromocytoma of urine bladder

　特徴的な泌尿器症状を伴わず，乳頭浮腫にて発見された膀胱褐色細胞腫の1例を報告した。症例は12歳女性で乳頭浮腫による視力低下を主訴に紹介され来院した。眼底からは高血圧性網膜症が疑われたが，当初高血圧はなく，2週間後に高血圧が出現，持続し，高血圧性網膜症と確定診断された。カテコラミンの異常を認め，CTにて膀胱褐色細胞腫の診断がつき，腫瘍摘出を行った。腫瘍摘出2か月後に，眼底所見は消失した。

A 12-year-old girl was referred to us due to papilledema and decreased vision in her left eye. Fundus findings in both eyes were indicative of hypertensive retinopathy. The systemic blood pressure was initially normal and became chronically elevated 2 weeks later. Elevated serum catecholamine level and whole body CT scan led to detection of urine bladder tumor. Pheochromocytoma was diagnosed from the surgically removed specimen. The fundus resumed normal appearance 2 months after surgery.