title: [Diagnosis of siamese twins at 12 weeks gestation (author's transl)].
abstract: Double monsters are a rare obstetric event. The mean incidence is approximately 1:50,000 deliveries. The early diagnosis of siamese twins with the aid of routine ultra-sound investigation is described. Typical ultrasound findings and procedures to verify the diagnosis are described in detail.
mesh_terms: D000028:Abortion, Induced; D001344:Autopsy; D005260:Female; D006801:Humans; D008297:Male; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011296:Prenatal Diagnosis; D014428:Twins, Conjoined; D014463:Ultrasonography
vernacular_title: Diagnose von siamesischen Zwillingen in der 12. Schwangerschaftswoche.