Department of Nuclear Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan, Republic of China.
Clin Nucl Med. 2011 Jan;36(1):49-51. doi: 10.1097/RLU.0b013e3181feefa7.
A 71-year-old man with rectal cancer history was referred for FDG PET/CT due to serum carcinoembryonic antigen level elevation. In addition to rectal cancer recurrent lesion, the FDG PET/CT scan also showed homogeneous intense FDG accumulation in the whole segment of descending colon and a small air bubble in the urinary bladder. After furosemide injection, the vesicocolic fistula was confirmed by typical air pattern in the urinary bladder on attenuation CT images and the decrease FDG activity in the descending colon. The patient has had the clinical manifestations of pneumaturia and watery diarrhea which support the diagnosis of vesicocolic fistula.
一位 71 岁男性，有直肠癌病史，因血清癌胚抗原水平升高而转介行 FDG PET/CT 检查。除了直肠癌复发病灶外，FDG PET/CT 扫描还显示降结肠的整个节段呈均匀强烈的 FDG 积聚，膀胱内有一个小气泡。注射呋塞米后，通过衰减 CT 图像上膀胱内典型的气型和降结肠 FDG 活性的降低，确认存在膀胱结肠瘘。患者出现了气尿和水样腹泻的临床表现，支持膀胱结肠瘘的诊断。
