Altered mental status [780.97], Reason for Study: ^Reason: new onset seizure History: new onset seizure No evidence of acute ischemic or hemorrhagic lesion.There is no evidence of hippocampal sclerosis of or abnormal signal intensity.There is no evidence of abnormal enhancement.Bihemispheric scattered high signal intensities on periventricular white matter on FLAIR images indicate nonspecific small vessel ischemic disease.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.About 16 mm x 22 mm sized well-circumscribed right temporo-occipital scalp lesion is again seen. The lesions show mixed are slightly high signal intensity on T1 weighted image with low signal intensity on T2 weighted image indicating high protein content cystic structure such as sebaceous cyst.
No evidence of acute ischemic or hemorrhagic lesion.No evidence of hippocampal sclerosis or abnormal signal intensity.No abnormal enhancement or mass lesion.Nonspecific small vessel ischemic disease as described above.Right temporo-occipital scalp sebaceous cyst most likely.