title: "Halo" sign on indium-111 leukocyte scan in gangrenous cholecystitis.
abstract: A 56-year-old man with a long history of Crohn's disease was evaluated by In-111 labeled leukocyte scanning. A "halo" of leukocyte activity was seen around the gallbladder fossa. A gangrenous gallbladder was removed at surgery.
mesh_terms: D002764:Cholecystitis / Q000000981:diagnostic imaging*; D005734:Gangrene; D006801:Humans; D007204:Indium; D007962:Leukocytes; D008297:Male; D008875:Middle Aged; D011868:Radioisotopes; D011877:Radionuclide Imaging
chemical_list: D011868:Radioisotopes; D007204:Indium