Y-shaped shunt for the treatment of Dandy-Walker malformation combined with giant arachnoid cysts: A case report

Figure 1 Preoperative imaging examination. A: Preoperative brain computed tomography revealed significantly dilated supratentorial ventricles, capped edema at bilateral frontal angles, huge occupying cysts in the right cerebellar hemisphere, and compression displacement in the right cerebellar hemisphere and the four ventricles; B and C: Preoperative magnetic resonance imaging T1 and T2 scans revealed significantly dilated lateral ventricle, capped edema at bilateral frontal angles, huge occupying cysts in the right cerebellar hemisphere and compression displacement in the right cerebellar hemisphere and the four ventricles; D: The sagittal position of cranial enhanced magnetic resonance also shows the above signs.