Reason: arachnoid cyst , with hydrocephalus , lumbar peritoneal shunt, Evaluate for changes History: headache. There are postoperative findings related to right pterional craniectomy with apparent deficiency of the calvarial bone flap and mild depression of the scalp flap. There is no evidence of underlying lesions. However, there is a subcentimeter right choroid fissure cyst. There are linear areas of gliosis in the bilateral frontal lobes related to tracts from prior ventricular catheterization. There is no midline shift. There is no evidence for intracranial hemorrhage or acute infarction. The orbits and paranasal sinuses are unremarkable.
1. Postoperative findings related to right pterional craniectomy with apparent deficiency of the calvarial bone flap and mild depression of the scalp flap, but no evidence of underlying arachnoid cyst.2. Subcentimeter right choroid fissure cyst. 3. No evidence of ventriculomegaly.I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.