title: Abdominal lithopedion formation with 30 years of evolution: report of a case.
abstract: The incidence of abdominal pregnancy is very rare, long-retained abdominal pregnancy undergoing fetal death and evolving to a lithopaedion is even more scarce. The authors report the case of a 60-year-old woman who discovered an abdominal mass 31 years ago that was recently identified intraoperatively as lithopaedion. Although imaging had revealed a low-level echogenic mass in the cavity, nobody had considered the possibility of a lithopaedion before the operation. The authors strongly suggest identifying the small skeletal frame through imaging that will be a very important preoperative sign that will lead to a diagnosis, otherwise neglected in the past years.
authors.forename: Yali
authors.initials: Y
authors.lastname: Yang
authors.forename: Hong
authors.initials: H
authors.lastname: Zhou
authors.forename: Jin
authors.initials: J
authors.lastname: Guo
authors.forename: Wei
authors.initials: W
authors.lastname: Su
authors.forename: Hong
authors.initials: H
authors.lastname: Shen
mesh_terms: D002114:Calcinosis / Q000175:diagnosis*; D005260:Female; D005313:Fetal Death; D006801:Humans; D008875:Middle Aged; D011247:Pregnancy; D011269:Pregnancy, Abdominal / Q000175:diagnosis*