Pseudo-subphrenic abscess.
The presence of a subphrenic abscess can be established by its soft tissue mass effect especially when it contains gas. In the five patients presented here, gas-containing subphrenic abscesses were mimicked by air in loops of ileum; partially loculated air due to subphrenic adhesions in the post-laparotomy patient; layering of denser barium below with gastric content above in a patient with gastric outlet obstruction; and gas in the renal bed after nephrectomy.
D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D005740:Gases; D006801:Humans; D007422:Intestines / Q000502:physiology; D008297:Male; D008875:Middle Aged; D011859:Radiography; D013369:Subphrenic Abscess / Q000000981:diagnostic imaging*
D005740:Gases