Hereditary hemorrhagic telangiectasia [I78.0] / Other malformations of cerebral vessels [Q28.3], Reason for Study: ^Reason: 3T Scanner, Please screen for cerebral AVMs, HHT History: HHT Brain MRIThere is a prominent vascular structure likely represent a cortical vein at the post-central sulcus draining toward superior sagittal sinus across the right superior parietal lobule. The lesion is also connected to a prominent medullary vein which drains toward ependymal surface of the right lateral ventricle.There is no evidence of adjacent brain parenchymal enhancement or evidence of enlarged arterial structure on this scan.Constellation of these findings may suggest cortical located micro AVM most likely fistulous type thus those enlarged vascular structures are superficial and deep drainages or could represent normal cortical vein and medullary vein. However, it would be unusual to see the connection of a medullary vein and cortical vein without vascular pathology.There is no evidence of acute ischemic or hemorrhage lesion.There is no abnormal enhancement. 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. 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.Brain MRA:3D time of flight MOTSA MRA brain images with maximum intensity projections of the anterior/posterior intracranial circulation demonstrate normal ICAs, MCAs and ACAs. Vertebrobasilar system appears to be normal.
1. No evidence of acute ischemic or hemorrhagic leison.2. Prominent cortical vein and medullary vein located at the post-central sulcus as described above. There is no evidence of abnormal brain parenchymal staining. This may indicate micro AVM. 3. Normal brain MRA.