A 39-year-old woman presented with abdominal pain after tubal sterilization
. CT showed a subphrenic abscess with fatty inclusions owing to laceration
or rupture of a mature ovarian teratoma. Although subphrenic abscess is a w
ell recognized post-operative complication, and ovarian teratomas are frequ
ent, a teratomatous inclusion within a subphrenic abscess is a unique findi
ng.