title: The widened loop sign of Lippe's loop perforations.
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007047:Hysterosalpingography; D007434:Intrauterine Devices / Q000009:adverse effects*; D010388:Pelvis / Q000000981:diagnostic imaging; D011247:Pregnancy; D014597:Uterine Rupture / Q000000981:diagnostic imaging* / Q000209:etiology