Central Nervous System

Question 0

Medial temporal lobe compress against III and PCA
Hemorrhagic lesions in midbrain and pons
Contralateral cerebral peduncle compression causing ipsilateral hemiparesis

Answer 0

Duret hemorrhages
Kernohan’s notch
Transtentorial herniation

Question 1

Cerebral hemisphere displaces cingulate gyrus under falx cerebri
ACA

Answer 1

Subfalcine cingulate herniation

Question 2

Displacement of cerebellar tonsils through foramen magnum

Brainstem compression

Answer 2

Tonsillar herniation

Question 3

Hypoplasia of cerebellar vermis

Dilated fourth ventricle

Answer 3

Dandy Walker malformation

Question 4

Downward extension of cerebellar vermis

Answer 4

Arnold Chiari

Chiari II

Question 5

Low lying cerebellar tonsils

Answer 5

Chiari I

Question 6

Multiple cavities traversed by a web of delicate glial strands

Answer 6

Multicystic encephalopathy

Question 7

Suprarentorial chalky yellow plaques

Perventricular white matter infarct

Answer 7

Periventricular leukomalacia

Question 8

Coup injuries

Contre coup injuries

Answer 8

Site of impact

Opposite

Question 9

Depressed retracted yellowish brown patches involving crests of gyri

Answer 9

Plaque jaune

Old traumatic lesions

Question 10

Middle meningeal artery
Lenticular shaped lesion
Lucid interval

Answer 10

Epidural hematoma

Question 11

Bridging veins
Crescent shaped lesion
Delayed with fluctuations

Answer 11

Subdural hematoma
Acute subdural membranes
Chronic alcoholic repeat bleeding

Question 12

Watershed infarcts
Selective vulnerabilities
Microvacuolation and eosinophilia
Uneven destruction of neocortex

Answer 12

Red neuron
Pseudolaminar necrosis
Global cerebral ischemia

Question 13

Lakelike spaces at lenticular nuclei

Answer 13

Lacunar infarcts

Question 14

Preferential involvement of large areas of the subcortical white matter with myelin and axon loss

Answer 14

Binswager syndrome

Question 15

Charcot Bouchard microaneurysms in basal ganglia
MCC
2nd MCC

Answer 15

Hypertension
Cerebral amyloid angiopathy
Intraparenchymal hemorrhage

Question 16

MC site of intraparenchymal hemorrhage

Answer 16

Putamen

Question 17

MC type of intracranial aneurysms

Sites

Answer 17

Saccular
ACA-A com
MCA-P com
MCA

Question 18

Worst headache

Yellowish CSF

Answer 18

Intracranial aneurysm

Question 19

Exudates within leptomeninges
Basal
Sagittal sinus

Answer 19

H influenzae

Pneumococcal

Question 20

Fibrinous exudate at the basal forebrain

Well circumscribed intraparenchymal mass

Answer 20

TB meningioencephalitis

Question 21

Obliterative endarteritis

Plasma cell rich mass lesions

Answer 21

Heubner arteritis
Gummas

Meningovascular neurosyphilis

Question 22

Dementia paralytica

Granular ependymitis

Answer 22

Paretic neurosyphilis

Question 23

Acute hemorrhagic necrotizing encephalitis of temporal lobes and orbital gyri

Answer 23

Herpes enceph

Question 24

Owl's eye inclusions in paraventricular subependymal regions of the brain

Answer 24

CMV encephalitis

Question 25

Mononuclear cell perivascular cuffs and neuronophagia of the anterior horn motor neurons

Answer 25

Poliomyelitis

Question 26

Soap bubbles appearance | Obstructive hydrocephalus

Answer 26

Cryptococcal meningitis

Question 27

Brain abscess near the gray white junction | Ring enhancing lesions

Answer 27

Toxoplasmosis

Question 28

T cell destruction of myelin sheaths Nd oligodendrocytes Multiphasic sclerotic plaques Oligoclonal band in CSF

Answer 28

MS

Question 29

MC sx of MS

Answer 29

Optic neuritis

Question 30

Elongated glassy eosinophilic bodies consisting of paracrystalline arrays of beaded actin filaments

Answer 30

Hirano bodies | Alzheimer disease

Question 31

Asymmetric atrophy of frontal and temporal lobes | Wafer thin gyri

Answer 31

Pick disease

Question 32

Elongated inclusions with dense core and pale halo composed of A synuclein

Answer 32

Lewy bodies | Parkinson disease

Question 33

Atrophy of the caudate nucleus

Answer 33

Huntington

Question 34

Atrophic precentral gyrus PAS positive cytoplasmic inclusions Neurogenic atrophy of LMN causing symmetric hand weakness

Answer 34

Bunjna bodies | ALS

Question 35

SOD1 gene in chr 21 | Copper zinc superoxide

Answer 35

ALS

Question 36

Wernicke | Korsakoff

Answer 36

Reversible mamillary bodies | Irreversible dorsomedial nucleus of thalamus

Question 37

Primary brain tumors in adults

Answer 37

Supratentorial Glioblastoma Meningioma Ependymoma

Question 38

Primary brain tumors in children

Answer 38

Infratentorial Cystic cerebellar astrocytoma Medulloblastoma Brainstem glioma

Question 39

Pseudopalisading pattern on tumor cells

Answer 39

Glioblastoma multiforme

Question 40

Loose microcystic pattern | Rosenthal fibers

Answer 40

Pilocytic astrocytoma

Question 41

Round tumor cells with cytoplasmic halos | Perineural satellitosis

Answer 41

Oligodendroglioma

Question 42

Solid or papillary masses extending from the floor of the ventricle Perivascular pseudorosettes

Answer 42

Ependymoma | SC

Question 43

Homer Wright rosettes Desmoplasia with pale islands Drop metastases in cauda equina

Answer 43

Medulloblastoma

Question 44

Parasagittal location | Psamomma bodies

Answer 44

Meningioma

Question 45

Most common brain mets

Answer 45

Lungs

Question 46

MC site of schwannoma

Answer 46

CPA

Question 47

Antoni A of Schwannoma

Answer 47

Verocay bodies

Question 48

Shredded carrot appearance

Answer 48

Plexiform NF | NF 1

Question 49

Shagreen patches | Ash leaf patches

Answer 49

Tuberous sclerosis