Nucl Med Mol Imaging.  2011 Dec;45(4):319-323.

A Case of Urethral Metastasis from Sigmoid Colon Cancer Diagnostically and Prognostically Indicated by F-18 FDG PET/CT

Affiliations
  • 1Department of Internal Medicine, National Police Hospital, Seoul, Korea.
  • 2Department of Nuclear Medicine, National Police Hospital, 58, Garakbon-dong, Songpa-gu, Seoul 138-708, Korea. minju38@nph.go.kr

Abstract

Urethral metastasis from colorectal cancer is rare and is known to have a poor prognosis. A 72-year-old man with a history of colectomy and colostomy due to sigmoid colon cancer was admitted to the emergency room with bowel distension, rectal bleeding and urinary symptoms. Computed tomography of the abdominopelvis showed sigmoid colon cancer with multiple metastases involving the liver. Positron emission tomography with F-18 fluorodeoxyglucose (FDG) showed multiple hypermetabolic foci in the liver, penis and pubic bone, which otherwise could not be diagnosed. The lesions revealed no improvement with chemotherapy and urological surgery on follow-up F-18 FDG PET/CT. We present a case of urethral metastasis of sigmoid colon cancer diagnostically and prognostically indicated by F-18 FDG PET/CT.

Keyword

Sigmoid colon cancer; Urethral metastasis; F-18 FDG PET/CT

MeSH Terms

Aged
Colectomy
Colon, Sigmoid
Colorectal Neoplasms
Colostomy
Emergencies
Follow-Up Studies
Hemorrhage
Humans
Liver
Male
Neoplasm Metastasis
Penis
Positron-Emission Tomography
Prognosis
Pubic Bone
Sigmoid Neoplasms
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