67Ga-citrate identification of inflammation in the perirenal space

Two patients are presented who had radiogallium (67Ga-citrate) studies which revealed focal abdominal accumulations identified as the perirenal space. These localizations, to a specific anatomical site, were confirmed surgically. The distinguishing features of the perirenal space on radiogallium scans include the relatively vertical axis, downward conical extension, and sharp cut-off ("sparing") medially to the midline.