CT finding of a left lower pelvic region low-density heterogeneous spongiform mass containing gas bubbles within and a surrounding thickened capsule associated with slightly blurred surrounding fat planes suggestive of gossypiboma. This mass lesion shows openings into the bladder as well as rectum that appear clearly visualized on the post-contrast study excretory phase and cystography (contrast administration via urinary catheter).
Note the thin curvilinear metallic structure seen in the periphery of the mass suggesting the foreign body.
Another note is made of the deformed dilated left ureter as well as atrophic hydronephrotic left kidney.