Tuberous sclerosis [Q85.1] / Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, without status epilepticus [G40.219], Reason for Study: ^Reason: cortical tubers, SEN, SEGA There is an enhancing nodular lesion on the right lateral ventricle frontal horn (series 1201, image 10) and the size is measured about 3.7mm. The lesion was seen on prior scan with the same maximum diameter. Thus more likely represent subependymal hamartoma, however, follow up imaging is recommended. Otherwise there is no evidence of abnormal enhancement.Multifocal subcortical and cortical abnormal high signal intensity lesions on T2 images on bilateral frontal and left parietal lobes are again seen, unchanged.Several subependymal nodules which do not show any evidence of enhancement are redemonstrated, unchanged.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. Mucosal thickening of bilateral maxillary sinuses, ethmoid sinus and frontal sinus.Opacification of the right mastoid air cells.
No change of multifocal subcortical and cortical T2 high signal intensities as well as subependymal lesions since prior scan.An enhancing lesion on the right lateral ventricle ependymal surface, no change of the maximum diameter since prior scan thus suggest subependymal hamartoma more likely, follow up imaging is indicated.No evidence of acute ischemic or hemorrhagic lesion.