CONGENITAL DEFECTS CNS Flashcards

1
Q

BANANA SIGN on ANTENATAL USG
🧠✨bANana sign ; ArN✨

A

Arnold Chari MALFORMATIONS
DUE TO: Absent Cisterna MAGNA

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2
Q

Development of CNS
🧠⚡To Do with Me Met My longata ⚡

A
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3
Q

LEMON SIGN on USG

A

Lemon shaped skull resulting from scalloping of frontal bones

NTD

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4
Q

Markers for NTD

A

Alpha fetoprotein
⭐ Acetylcholine esterase

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5
Q

Mumps enter the CNS via

A

Choroid plexus ➡️ infect the ependymal cells

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6
Q

Development of CNS BEGINS AT

A

3rd week
Along with GASTRULATION

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7
Q

2 ° MESENCHYME aka

A

Neural Creast cells
4th Germ Layer

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8
Q

Folic acid Supplementation
Normal mother
Mother with previous H/O NTD child

A

⭐ 400 micro grams daily

⭐ 4000 micro grams daily

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9
Q

⚡⚡ MOST SPECIFIC and BEST MARKER FOR NTD

A

Acetylcholinesterase

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10
Q

⚡⚡ MOST SENSITIVE MARKER FOR NTD
🧠⚡ T = t⚡

A

Alpha fetoprotein

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11
Q

Neural Tube Defects

A
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12
Q

In Leaking MENINGOMYELOCELE, BEST Test for Dx

A

CSF CULTURE
BLOOD CULTURE

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13
Q

⚡⚡ MOST SERIOUS TYPE OF CAUDAL NTD

A

Meningomyelocele

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14
Q

⚡⚡ MOST COMMON LOCATION OF MENINGOMYELOCELE

A

LUMBO SACRAL Region

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15
Q

🧬 MODE OF INHERITENCE 💉 of NTD

A

Multi factorial

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16
Q

Very HIGH INCIDENCE OF HYDROCEPHALUS ➕ ARNOLD CHIARI MALFORMATIONS II IS SEEN WITH WHICH NTD

A

MENINGOMYELOCELE

17
Q

MENINGOMYELOCELE types

A
18
Q

GENITAL TRACT ABNORMALITIES ARE ASSOCIATED WITH WHICH NTD

A

Meningocele
-Vaginal septa
-Rectovaginal fistula

19
Q

NTD Patients have which ALLERGY

A

Latex injury

20
Q

⚡⚡ MOST COMMON CAUSE of VENTRICULOMEGALY HYDROCEPHALUS IN NEWBORN

A

Aqueductal Stenosis

21
Q

Arnold Chiari MALFORMATIONS
Basic Defect

A

Herniation of cerebellum and 4th ventricle into foramen magnum
⬇️
Flattening of Base of skull

Spina bifida with MENINGOMYELOCELE

22
Q

Which Arnold Chiari MALFORMATIONS seen in INFANTS?

A

Type II

23
Q

Arnold Chiari MALFORMATIONS in ADULTS

A

Type 1

24
Q

HYDROCEPHALUS ➕ MENINGOMYELOCELE
IS ASSOCIATED WITH WHICH Arnold Chiari MALFORMATIONS

A

Type 2 Arnold Chiari MALFORMATIONS

25
Q

Cause of Type 2 Arnold Chiari MALFORMATIONS

A

Failure of PONTINE FLEXURE during embryogenesis

26
Q

Type 3 and Type 4 Arnold Chiari MALFORMATIONS

A
27
Q

Type 1 Arnold Chiari MALFORMATIONS

A
28
Q

AGENESIS OF SPLENIUM OF CORPUS CALLOSUM is ASSOCIATED with

A

DANDY WALKER MALFORMATIONS

29
Q

⚡⚡ MOST COMMON site of PORENCEPHALY

A

Sylvian Fissure

30
Q

PORENCEPHALY is ASSOCIATED with

A

DANDY WALKER SYNDROME

31
Q

SONIC HEDGEHOGBPATHWAY DEFECT ass with

A

HOLOPROSENCEPHALY

32
Q

Basic defect in NEURONAL MIGRATION DISORDERS

A

Radial Glial Fibers

33
Q

4 LAYERED CEREBRAL CORTEX ASSOCIATED WITH

A

LISSENCEPHALY

34
Q

INDEPENDENT EEG FINDING ON 2 SIDES OF THE BRAIN

A

AGENESIS of Corpus Callosum

35
Q
A

Vein of GALEN MALFORMATION

36
Q
A

Ans C:-
🌠Hydranencephaly
🌊Condition in which brain lacks cerebral hemispheres and cranial cavity is filled with fluid
🌊C/f:-
1. Normal at birth
2. Increasing head circumference
3. Seizures
4. Quadriplegia ,respiratory dufficulties , lack of growth

🌊Diagnosis :-
1. Transillumination positive
2. IOC - USG

🌊Fatal condition