クローン病で広範腸切除術後に蓚酸カルシウム尿路結石症を合併したEnteric Hyperoxaluriaの1例

Abstract

A 23-year-old man who frequently passed pure calcium oxalate urinary stones after resection of about 100 cm of his ileum and all of his colon for Crohn's disease is presented. Various clinical data, including sodium oxalate loading test, disclosed that hyperabsorption of oxalate from the intestine was the cause of recurrent urolithiasis, which had been well controlled by the adherence to a low-oxalate, low-fat diet and medication of calcium lactate for more than two years. To our knowledge, this is the first reported case of enteric hyperoxaluria due to Crohn's disease in Japan.