title: Apparent filling defects of the liver.
mesh_terms: D003110:Colonic Neoplasms; D003937:Diagnosis, Differential; D006801:Humans; D008099:Liver / Q000000981:diagnostic imaging*; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary; D008297:Male; D008875:Middle Aged; D011877:Radionuclide Imaging