title: B-scan ultrasonography of abdominal mass lesions.
mesh_terms: D000008:Abdominal Neoplasms / Q000175:diagnosis*; D000328:Adult; D000368:Aged; D002277:Carcinoma / Q000175:diagnosis; D003110:Colonic Neoplasms / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis; D016403:Lymphoma, Large B-Cell, Diffuse / Q000175:diagnosis; D008297:Male; D008722:Methods; D008875:Middle Aged; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis; D013163:Splenomegaly / Q000175:diagnosis; D014463:Ultrasonography; D014567:Urography