title: Unusual presentation of a large infected hemophiliac pseudotumor in an autologous indium-111 WBC scan.
abstract: A false-negative In-111 WBC scan was obtained in a case of a large, infected hemophiliac pseudotumor. Following aspiration of the abscess, a positive scan was seen, demonstrating that In-111 WBC imaging occasionally may be misleading as a diagnostic tool.
mesh_terms: D000328:Adult; D005188:False Negative Reactions; D005350:Fibroma / Q000150:complications / Q000000981:diagnostic imaging*; D006467:Hemophilia A / Q000150:complications*; D006801:Humans; D006912:Hydroxyquinolines; D007204:Indium; D007962:Leukocytes; D009942:Organometallic Compounds; D015125:Oxyquinoline / Q000031:analogs & derivatives; D011868:Radioisotopes; D011877:Radionuclide Imaging; D012186:Retroperitoneal Neoplasms / Q000150:complications / Q000000981:diagnostic imaging*; D012480:Salmonella Infections / Q000150:complications / Q000000981:diagnostic imaging*
chemical_list: D006912:Hydroxyquinolines; D009942:Organometallic Compounds; D011868:Radioisotopes; D007204:Indium; C032950:indium oxine; D015125:Oxyquinoline