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Colon Visualization on Bone Scan Due to Recto-abscess Fistula From Urinoma

Chao, Kang-Hung, MD*; Yen, Tsung-Hsien, MD; Huang, Cheng-Kai, RT*; Changlai, Sheng-Pin, MD, PhD

doi: 10.1097/RLU.0000000000002446
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The accumulation of the bone-seeking agent in the bowel during a bone scan is rare. A 68-year-old man with colon cancer underwent bone scintigraphy for staging. Whole-body images revealed an abnormal accumulation of hot radioactivity in the abdominal cavity and the colon. Abdominal CT showed a recto-abscess fistula between the rectum and the urinoma. Incidental visualization of colonic radioactivity suggested the presence of a fistula between the bowel and the urinoma, explaining the peculiar finding of the bone-seeking agent in the bowel.

From the Departments of *Nuclear Medicine, and

Radiology, Chung-Kang Branch, Cheng-Ching General Hospital, Taichung; and

Department of Nuclear Medicine, Landseed Hospital, Taoyuan, Taiwan, Republic of China.

Received for publication September 28, 2018; revision accepted November 20, 2018.

Conflicts of interest and sources of funding: none declared.

Correspondence to: Sheng-Pin Changlai, MD, PhD, Department of Nuclear Medicine, Landseed Hospital, No.77 Guangtai Road, Pingzhen District, Taoyuan City, Taiwan, Republic of China. E-mail: changlaisp@landseed.com.tw.

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