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Advantage of Indium-111 Leukocytes over Ultrasound in Imaging an Infected Renal Cyst

Division of Nuclear Medicine, Department of Radiology, University of Utah School of Medicine
Veterans Administration Medical Center, Salt Lake City, Utah

Correspondence: For reprints contact: Andrew Taylor, Jr., MD, Div. of Nuclear Medicine, Dept. of Radiology, University of Utah Health Science Center, 50 North Medical Dr., Salt Lake City, UT 84132.

ABSTRACT

Indium-111-labeled leukocyte scanning is a highly sensitive and specific method of detecting abscesses. This report describes a patient with polycystic kidneys and a single infected cyst. Ultrasound could not determine which cyst was infected, but the infected cyst could be localized by [¹¹¹In]leukocyte imaging in conjunction with a [^99mTc]DMSA renal scan. The two radionuclide studies were used to identify an infected renal cyst and direct ultrasound guided aspiration.