title: Acute abdominal pain due to an acquired disorder of coagulation.
mesh_terms: D000005:Abdomen; D000208:Acute Disease; D000368:Aged; D006467:Hemophilia A / Q000175:diagnosis*; D006470:Hemorrhage / Q000150:complications; D006801:Humans; D008297:Male; D010146:Pain / Q000209:etiology*; D012187:Retroperitoneal Space