title: Spontaneous pneumoperitoneum without peritonitis and without demonstrable cause.
authors.forename: J M
authors.initials: JM
authors.lastname: MASON
authors.forename: E M
authors.initials: EM
authors.lastname: MASON
authors.forename: K F
authors.initials: KF
authors.lastname: KESMODEL
mesh_terms: D000005:Abdomen; D006801:Humans; D010538:Peritonitis; D011027:Pneumoperitoneum / Q000209:etiology*