Loading....
Coupon Accepted Successfully!

Medicine

Open Flashcards

Neurology

Question
16 out of 27
 

Thalamic syndrome occurs due to involvement of ? (AIPG 2011)



A ACA
B MCA

C PCA
D Basilar artery

Ans. C

PCA

Posterior cerebral artery Q– It supplies the medial surface of temporal and occipital lobes and their tentorial surface. It also supplies cerebellum, medulla, pons, mid brain Subthalamus and thalamus.

Occlusion of posterior cerebral artery

Peripheral territory

Symptoms & signs

Structures involved

Homonymous hemianopia with macular Sparing

Calcarine cortex/ optic radiation

Colour blindness, Anton’s syndrome

B/L occipital lobe with involvement of some cortical blindness (Preserved pupillary reflex)

Balint's syndrome

à Bilateral visual association area lesions

Extra Edge: Balint’s syndrome- A disorder of the orderly visual scanning of the environment, usually resulting from infarctions secondary to low flow in the "watershed" between the distal PCA and MCA territories, as occurs after cardiac arrest. Patients may experience persistence of a visual image for several minutes despite gazing at another scene (palinopsia) or an inability to synthesize the whole of an image (asimultanagnosia). (Ref. Hari-18th ed., pg- 3287)

Central territory

Symptoms & signs

Structures involved

1). Thalamic syndrome – Sensory loss of modalities, spontaneous pain & paresthesia, choreoathetosis, intention tremor

Postero ventral nucleus of thalamus.

2). Benedict syndrome – C/L cerebellar ataxia with ipsilateral III nerve palsy

à Red nucleus and III nerve.

3). Nothnagel syndrome – C/L cerebellar signs

Superior cerebellar peduncle

4). Claude’s = Nothnagel + Benedict syndrome

5). Weber’s syndrome – contralateral

Pyramidal tract with III nerve.

6). Hemiplegia with ipsilateral III nerve palsy

Lateral medullary syndrome It is due to occlusion of

Post. inf. cerebellar artery (PICA)

It is also known as Wallenberg’s syndrome.

Neurology Flashcard List

27 flashcards
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
21)
22)
23)
24)
25)
26)
27)