Lesson 1Importance a lesion location an cortical involvement fi seizure focus localizationExplore how lesion location an cortical involvement influence seizure semiology an localization, highlightin eloquent cortex, limbic structures, an network connectivity, an how radiologists can align imaginin findins wid clinical EEG data. It connect imaginin to symptoms.
Frontal lobe lesions an seizure patternsTemporal lobe lesions an mesial structuresParietal an occipital cortical seizure correlatesInsular an opercular lesion presentationsLesion laterality an language or motor riskIntegratin MRI wid EEG an clinical semiologyLesson 2Assessin enhancement patterns: minimal, patchy, ring, nodular—implications fi tumor grade an nonneoplastic mimicsReview cortical lesion enhancement patterns pon post-contrast MRI, linkin minimal, patchy, ring, an nodular enhancement to tumor grade, blood–brain barrier disruption, treatment effect, an key nonneoplastic mimics such as demyelination an infection. It clarify enhancement meanins.
Minimal or absent enhancement in low-grade lesionsPatchy an heterogeneous enhancement in neoplasmsRing enhancement: abscess, metastasis, demyelinationNodular an solid enhancement in higher grade tumorsTemporal evolution a enhancement after therapyPitfalls from vascular structures an leptomeningesLesson 3Role a restricted diffusion, perfusion imaginin, an MR spectroscopy in gradin an differential narrowinDetail how diffusion, perfusion, an MR spectroscopy refine lesion characterization an gradin, coverin restricted diffusion patterns, rCBV thresholds, metabolic spectra, an how fi integrate dese advanced techniques into practical differential diagnosis. It advance yuh skills.
Interpretin restricted diffusion in cortical lesionsPerfusion metrics an rCBV in tumor gradinSpectroscopy patterns in neoplasm an gliosisSpectroscopy in infection, abscess, an demyelinationCombinin DWI, perfusion, an MRS fi diagnosisTechnical pitfalls an artifacts in advanced imagininLesson 4When fi suggest biopsy, surgical referral, EEG correlation, or interval MRI follow-upExplain how fi translate MRI findins into management advice, outlinin imaginin an clinical features dat warrant biopsy, surgical referral, EEG correlation, or short- versus long-interval follow-up, while considerin patient age, symptoms, an comorbidities. It guide decisions.
Imaginin red flags dat favor urgent biopsyFeatures suggestin neurosurgical referral fi resectionWhen fi recommend EEG correlation fi seizure focusCriteria fi short-interval MRI surveillanceWhen longer interval follow-up is appropriateCommunicatin uncertainty an shared decision makinLesson 5Cortical–subcortical lesion differentials in adults wid seizures: DNET, ganglioglioma, cortical dysplasia, low-grade glioma, abscess, metastasisOutline cortical–subcortical lesion differentials in adults wid seizures, focusin pon DNET, ganglioglioma, focal cortical dysplasia, low-grade glioma, abscess, an metastasis, wid key MRI signs dat help narrow di diagnosis an guide further workup. It list common causes.
MRI features a DNET an bubbly cortical lesionsGanglioglioma: cyst, mural nodule, an calcificationFocal cortical dysplasia an transmantle signDistinguishin low-grade glioma from dysplasiaAbscess versus necrotic tumor in seizure patientsMetastasis patterns involvin cortex an junctionLesson 6Reportin recommendations fi solitary cortical lesions: findins fi include, recommended further imaginin, an urgencyProvide structured reportin guidance fi solitary cortical lesions, specifyin essential descriptors, suggested differentials, recommended additional imaginin, an how fi convey urgency, uncertainty, an follow-up needs to referrin clinicians. It standardize yuh reports.
Key lesion descriptors fi include in reportsStatin leadin an alternative differentialsRecommendin additional MRI or CT sequencesWhen fi suggest advanced imaginin or PETCommunicatin urgency an need fi referralStandardized phrases fi reduce ambiguityLesson 7MRI sequences an deir diagnostic roles: T1, T2, FLAIR, DWI/ADC, T2*, susceptibility, an post-contrast T1Review core MRI sequences used in cortical lesion assessment, includin T1, T2, FLAIR, DWI/ADC, susceptibility, an post-contrast T1, emphasizin how each contribute unique information to lesion detection, characterization, an seizure evaluation. It explain sequence uses.
Role a T1-weighted imaginin in lesion anatomyT2 an FLAIR fi edema an cortical signalDWI an ADC fi cytotoxic versus vasogenic edemaSusceptibility imaginin fi blood an calcificationPost-contrast T1 fi enhancement assessmentOptimizin protocols fi epilepsy MRI studiesLesson 8Imaginin features distinguishin low-grade versus high-grade gliomas: signal patterns, contrast enhancement, diffusion, an mass effectCompare MRI features a low- versus high-grade gliomas, includin signal characteristics, enhancement, diffusion, perfusion, an mass effect, an explain how dese findins correlate wid histology, prognosis, an potential treatment plannin. It differentiate grades.
Typical MRI appearance a low-grade gliomasHigh-grade glioma enhancement an necrosisDiffusion an perfusion differences by tumor gradePatterns a mass effect an midline shiftNonenhancin high-grade glioma pitfallsImaginin clues to malignant transformation
