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Significance of Delayed ⁶⁷Ga Localization in the Kidneys

Mallinckrodt Institute of Radiology, St. Louis, Missouri

Correspondence: For reprints contact: Bharath Kumar, 2215 Glenallen Ave., T-1, Silver Spring, MD 20906.

ABSTRACT

One hundred and seventy-five ⁶⁷Ga-citrate scans were performed to detect suspected occult inflammatory processes. None of the patients had a known malignancy. Renal activity was noted in 12 patients (6.8%) on the 48-hr image. These patients had either pyelonephritis, acute tubular necrosis, vasculitis, or a renal abscess. Since delayed ⁶⁷Ga uptake in the kidneys may be the first evidence of renal disease, further investigation, including either arteriography or biopsy, is necessary. In patients with a known malignancy, tumor involvement must be considered.