Aunt Minnies Neuro

Question 1

Answer 1

Complete Agenesis of the Corpus Callosum

Question 2

Answer 2

Dysgenesis of the Corpus Callosum With an Interhemispheric Lipoma

Question 3

Answer 3

perisylvian closed-lip schizencephaly

Question 4

Answer 4

Holoprosencephaly

Question 5

Answer 5

Chiari II Malformation.

Question 6

Answer 6

Dandy–Walker Malformation.

Question 7

Answer 7

Joubert Syndrome and Related Disorders (JSRD)

Question 8

Answer 8

Rhombencephalosynapsis

• incomplete separation of the cerebellar hemispheres as evidenced by the transversely oriented continuous folia and absence of the cerebellar vermis

Question 9

Answer 9

Microlissencephaly

• near-complete absence of the sulci and gyri with marked microcephaly

Question 10

Answer 10

Hemimegalencephaly

Question 11

Answer 11

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

Question 12

Answer 12

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

Question 13

Answer 13

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.

Question 14

Answer 14

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.

Question 15

Answer 15

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

Question 16

Answer 16

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.

Question 17

Answer 17

Hemangioblastoma

• Cyst with enhancing mural nodule in the cerebellum

Question 18

Answer 18

Split Cord Malformation

Question 19

Answer 19

Epidural hematoma

Question 20

Answer 20

Developmental Venous Anomaly

Question 21

Answer 21

Sinus Pericrinii

Question 22

Answer 22

“Puff of Smoke” ~ Moya Moya

Question 23

Answer 23

Artery of Percheron Infarct

Question 24

Answer 24

Hydatid Cyst, Liver

Question 25

Answer 25

Hydatid Cyst, Liver