Conjoined twins, with partially shared gastrointestinal system, in 2 numbered illustrations. 1 illustration of female neonates, joined at the thorax and abdomen, umbilical hernia shown. 1 illustration of the gastrointestinal system shown in isolation; 2 stomachs, shared duodenum, separating at the ileum, and terminating separately. Anomalous cecum shown in the large intestine of 1 twin.