Aunt Minnies Neuro Flashcards
Complete Agenesis of the Corpus Callosum
Dysgenesis of the Corpus Callosum With an Interhemispheric Lipoma
perisylvian closed-lip schizencephaly
Holoprosencephaly
Chiari II Malformation.
Dandy–Walker Malformation.
Joubert Syndrome and Related Disorders (JSRD)
Rhombencephalosynapsis
- incomplete separation of the cerebellar hemispheres as evidenced by the transversely oriented continuous folia and absence of the cerebellar vermis
Microlissencephaly
- near-complete absence of the sulci and gyri with marked microcephaly
Hemimegalencephaly
Subependymal and periventricular gray matter heterotopias
- T1 and T2 MRI images of the brain in axial view shows multiple nodularities in the subependymal region of both lateral ventricles that are isointense with gray matter
*DO NOT enhance, DO NOT calcify
DDX:
Subependymal tubers
Lissencephaly/Pachygyria
- T1 and T2 MRI of the brain in axial views show a markedly thickened cortex with lesser degree of sulcation involving the bilateral fronto-parietal lobes. A band-like foci- isointense to gray matter, is seen in the white matter regions paralleling both lateral ventricles. It is separated from the cortex by a thin band of white matter signal. The brain assumes an hour-glass or figure of 8 appearance
Lissencephaly
- T1 and T2 MR images of the brain in axial and coronal views show an hour-glass configuration of the brain with minimal to absent gyral/sulcal development.
Polymicrogyria
- T1 and T2 MR images of the brain in axial views show an increased number of of abnormally small gyri in the right fronto-parietal lobe.
Schizencephaly (Open Lip)
- T2 MR image of the brain in coronal and axial views show a gray matter-lined CSF cleft in left parietal region which appears continuous with the left lateral ventricle.
*Closed-lip = cortices of the cleft immediately apose
Hydranencephaly
- Plain Sagittal CT and axial T1 images of the brain show absence of the brain parenchyma above the orbits with preservation of the posterior fossa structures and medial temporal lobes.
Hemangioblastoma
- Cyst with enhancing mural nodule in the cerebellum
Split Cord Malformation
Epidural hematoma
Developmental Venous Anomaly
Sinus Pericrinii
“Puff of Smoke” ~ Moya Moya
Artery of Percheron Infarct
Hydatid Cyst, Liver