title: Perinephric urinoma due to locally advanced recto-sigmoid tumor: incidental finding on bone scan.
abstract: We are presenting a 59 years old man with locally advanced recto-sigmoid colon cancer; complaining of left flank pain and bone scan was done to rule out bone metastases. Findings in bone scan were suggesting left renal obstruction, but further SPECT/CT imaging to localize the uptake revealed a perinephric collection likely due to leak from the left ureter close to tumor site.
authors.affiliation: Department of Nuclear Medicine and PET, Singapore General Hospital, Singapore 169608, Singapore.
authors.forename: Ammad Shanoon Marzooq
authors.initials: AS
authors.lastname: Al Tamimi
authors.affiliation: Department of Nuclear Medicine and PET, Singapore General Hospital, Singapore 169608, Singapore.
authors.forename: Butch
authors.initials: B
authors.lastname: Magsombol
authors.affiliation: Department of Nuclear Medicine and PET, Singapore General Hospital, Singapore 169608, Singapore.
authors.forename: Arthur
authors.initials: A
authors.lastname: Ng
authors.affiliation: Department of Nuclear Medicine and PET, Singapore General Hospital, Singapore 169608, Singapore.
authors.forename: David
authors.initials: D
authors.lastname: Ng
keywords: Bone scan; single photon emission tomography/computed tomography; urinoma