title: Pyogenic liver abscess presenting as a "warm" lesion in Ga-67 scintigram. A potential pitfall in interpretation.
abstract: In the Ga-67 scintigram, most pyogenic liver abscesses appear to be areas of high radiotracer concentration; rarely photon-deficient lesions may also occur. We present a 58-year-old man with sepsis and hepatic abscess, demonstrated by a Tc-99m BIDA study and a computerized tomogram of the body, showing homogenous radiogallium uptake throughout the liver in the Ga-67 images. To avoid missing such a "warm" lesion, it is emphasized that abdominal Ga-67 scintigrams for localization of a focal inflammatory lesion should be done along with Tc-99m sulfur colloid or Tc-99m BIDA scintigraphy.
mesh_terms: D005710:Gallium Radioisotopes; D006801:Humans; D007098:Imino Acids; D007676:Kidney Failure, Chronic / Q000150:complications; D008099:Liver / Q000000981:diagnostic imaging; D008100:Liver Abscess / Q000000981:diagnostic imaging* / Q000209:etiology; D008297:Male; D008875:Middle Aged; D015609:Organotechnetium Compounds; D011877:Radionuclide Imaging; D013455:Sulfur; D013667:Technetium; D013671:Technetium Tc 99m Sulfur Colloid
chemical_list: D005710:Gallium Radioisotopes; D007098:Imino Acids; D015609:Organotechnetium Compounds; C024340:technetium Tc 99m (para-butyl)iminodiacetic acid; D013671:Technetium Tc 99m Sulfur Colloid; D013455:Sulfur; D013667:Technetium