title: Unusual appearance for urinary bladder obstruction detected with 99mTc-MDP bone scintigraphy.
abstract: Unanticipated but clinically significant nonosseous findings can be detected during routine bone scintigraphy. We present a case of an 83-year-old man who presented with a pathologic fracture of the right femur. Whole-body bone scintigraphy for osseous staging revealed intense radiotracer accumulation in the kidneys and ureters but no activity within the urinary bladder. The patient had not voided for 14 hours. A Foley catheter was inserted, and more than 2000 mL of urine was drained, most consistent with urinary bladder obstruction. Subsequent repeat images demonstrated marked reduction of the renal and ureteral activity with trace activity in the urinary bladder.
authors.affiliation: From the *Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, The Ohio State University Wexner Medical Center, Columbus, OH; and †Division of Nuclear Medicine, Department of Radiology, Mallinckrodt Institute of Radiology, Washington University, St Louis.
authors.forename: Chadwick L
authors.initials: CL
authors.lastname: Wright
authors.forename: Akash
authors.initials: A
authors.lastname: Sharma
mesh_terms: D000369:Aged, 80 and over; D005264:Femoral Fractures / Q000000981:diagnostic imaging*; D006801:Humans; D033162:Incidental Findings; D008297:Male; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D013669:Technetium Tc 99m Medronate; D014524:Urethral Obstruction / Q000000981:diagnostic imaging*; D001743:Urinary Bladder / Q000000981:diagnostic imaging
chemical_list: D019275:Radiopharmaceuticals; D013669:Technetium Tc 99m Medronate