Demyelinating Disease
Asymmetric
Asymmetric
Symmetric
Symmetric
Midline
Midline
Asymmetric Pattern
Asymmetric Pattern
Multiple Small Ovoid Lesions
Multiple Small Ovoid Lesions
Multiple Sclerosis
ADEM
Vascular (SVID, Vasculitis, CADASIL, Susac Syndrome)
Lyme Disease
Multiple Sclerosis
Multiple Sclerosis
CADASIL
CADASIL
Large Geographic
Large Geographic
Tumefactive MS
ADEM
PML, Lyme Disease
Inflammatory Amyloid
Tumefactive MS
Tumefactive MS
Cerebral Amyloid Angiopathy- Inflammatory Subtype
Cerebral Amyloid Angiopathy- Inflammatory Subtype
Lyme Disease
Lyme Disease
PML
PML
Symmetric/Midline Distribution
Symmetric/Midline Distribution
Symmetric Lobar
Symmetric Lobar
Toxic Metabolic
Infectious
Vascular/Hemodynamic
Chemotherapy
Chemotherapy
Radiation
Radiation
HIV Encephalopathy
HIV Encephalopathy
Symmetric Occipital Lobe/Pons
Symmetric Occipital Lobe/Pons
PRES
Tumor
Metabolic
Osmotic Demyelination
Vascular/Hemodynamic
Small Vessel Ischemic Disease
Infarction
Vasculitis: Behçet Disease
PRES
PRES
Osmotic Demyelination
Osmotic Demyelination
Small Vessel Ischemic Disease
Small Vessel Ischemic Disease
Splenium
Splenium
Toxic: substance abuse e.g. Alcohol, Heroin
Metabolic: Hypoglycemia
Epilepsy: either from seizure or from meds related to treatment for epilepsy
Viral encephalitis
Trauma (DAI)
Inflammatory: MS, ADEM (other lesions should be present)
Tumor: Lymphoma, GBM
Opiate Toxicity
Opiate Toxicity