title: Ultrasonic evaluation of ovarian teratoma simulating pregnancy.
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008722:Methods; D010051:Ovarian Neoplasms / Q000175:diagnosis*; D011247:Pregnancy; D013724:Teratoma / Q000175:diagnosis*; D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography