title: Cephalothoracopagus (Janiceps) twinning.
abstract: Conjoined twins occur with a frequency of 1/50,000--1/100,000 deliveries. The cephalothoracopagus variety is particularly rare. This paper presents a case report of cephalothoracopagus (Janiceps) twinning, with a detailed pathologic analysis, as well as an historical review and discussion of diagnostic modalities.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D011296:Prenatal Diagnosis; D014428:Twins, Conjoined / Q000196:embryology / Q000473:pathology; D014463:Ultrasonography