title: Acute hemoperitoneum, IUD, and occult ovarian pregnancy.
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D003338:Corpus Luteum / Q000473:pathology; D005260:Female; D006465:Hemoperitoneum / Q000209:etiology* / Q000473:pathology; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects*; D010048:Ovarian Cysts / Q000150:complications / Q000473:pathology; D010053:Ovary; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000150:complications / Q000209:etiology* / Q000473:pathology