A Case of Hydranencephaly Combined with Twin Pregnancy

Hydranencehaly is an abnormality consisting of complete or almost absence of the cerebral hemispheres, which are replaced by a large fluid-filled cavity. The midbrain and brain stem are relatively intact, and rudiments of frontal, temporal and occipital cortex may be present. We diagnosed it through the evaluation of clinical features, prenatal US (intrauterine pregnancy, 37 wks) and brain CT. Authors have experienced a case of hydranencephaly combined with twin pregnancy and reported with a brief literature review.