Abstract:Background: Symmetric craniorachipagus is an exceedingly rare type of biumbilical conjoined twinning, known from only three scantily described cases.Case: We identified a fourth, previously described case that was misdiagnosed as janiceps and as pygopagus. It concerned dorsally conjoined twins that were part of a triplet pregnancy, spontaneously born at 22 weeks of gestation. Radiography confirmed union at the occipital craniums and the thoracolumbar vertebral columns. Both twins had their own separate umbilic… Show more
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