Disorder of brain, unspecified [G93.9], Reason for Study: ^Reason: hx brain lesion. Eval for change History: none- surveillance There is no evidence of acute ischemic lesion.There are multifocal various sized bihemispheric susceptibility lesions including prominent left posterior temporal-parietal, left frontal and right frontal lobe lesions, unchanged since prior scan.Today's scan shows minimal peripheral enhancement of the left posterior temporo-parietal lesion which showed relatively intense enhancement.Therefore, the diagnostic possibility of the lesion goes toward a cavernous malformation than metastatic lesion. 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.
1. Interval decrease of enhancement of the left posterior temporo-parietal lobe lesion with remained susceptibility artifacts indicate possible diagnosis cavernous malformation. Follow up imaging is recommended.2. Multifocal various sized non enhancing susceptibility lesions within bihemispheric distribution suggest the diagnosis of multiple cavernous malformation.