Hemangioma of intracranial structures [D18.02], Reason for Study: ^Reason: Please page neurosurgery resident to place fiducials, PRE-OP STEALTH MRI, DO IN CCD History: PRE-OP STEALTH MRI FOR BRAINSTEM CAVERNOMA REMOVAL Multiple fiducial markers attached on the scalp per Stealth protocol.There is lobulating contoured pontine cavernous malformation which is located left posterior aspect and extends from midbrain to the level of left side middle cerebellar peduncle. The size of the lesion is about 28.3mm (RL) x 17.7mm (AP) x 28.2mm (CC).Surrounding edema seen on the midbrain as well as left middle cerebellar peduncle indicate possible recent hemorrhagic event. Comparing to prior scan, the extent of surrounding edema appears to be slightly lessen since prior scan.Otherwise, the ventricles, sulci and cisterns are symmetric and unremarkable. The midline structures and cranial-cervical junction are normal. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
Preoperative stealth protocol MRI has been performed.Large pontine cavernous malformation centered at the posterior and left lateral aspect of pons with evidence of recent hemorrhagic event, redemonstrated, slightly decreased extent of edema since prior scan.