title: The use of ultrasound to diagnose a pseudomass effect secondary to abdominal ascites.
abstract: Two cases of abdominal ascites in which a mass lesion was simulated on the roentgenogram are reported. Sonography permits ready differentiation of an encapsulated from a nonencapsulated fluid collection.
mesh_terms: D000008:Abdominal Neoplasms / Q000175:diagnosis; D000328:Adult; D001201:Ascites / Q000175:diagnosis*; D001466:Barium Sulfate; D003560:Cysts / Q000175:diagnosis; D003937:Diagnosis, Differential; D004733:Enema; D006801:Humans; D008297:Male; D008875:Middle Aged; D010386:Pelvic Neoplasms / Q000175:diagnosis; D014463:Ultrasonography
chemical_list: D001466:Barium Sulfate