Known left midbrain cavernoma annual follow-up. Redemonstration of left midbrain cavernoma with surrounding hemosiderin deposition, no change in terms of size, extent of hemosiderin deposition and MR signal intensity characteristics since prior scan.Associated developmental venous anomaly also do not show any significant interval change since prior scan.On FLAIR images, there are scattered bihemispheric high signal intensities indicating nonspecific small vessel disease, no change since prior scan.There is no evidence of acute ischemic or hemorrhagic lesion on the scan.The ventricles, sulci and cisterns are symmetric and unremarkable. There is no mass, mass effect, edema, midline shift, intra or extra-axial fluid collection/hemorrhage, restricted diffusion/acute ischemia, or abnormal contrast enhancement. 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. Redemonstration of the left midbrain cavernous malformation associated with developmental venous anomaly, no change of its size, extent of hemosiderin deposition and MR signal characteristics since prior exam.2. Nonspecific small vessel ischemic disease, no change since prior exam.