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Medicine

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Neurology

Question
7 out of 12
 

All of the following may cause metastatic tumour causing spinal cord compressions except: (DNB JUNE 09)



A Lung carcinoma
B Breast carcinoma

C Lymphoma
D Meningioma

Ans. D

Meningioma

SPINAL CORD COMPRESSION

Table: Causes of spinal cord compression.

Site

Frequency

Causes

Vertebral (Extradural)

80%

Trauma, Intravertebral disc prolapse,

Secondary from Breast, Prostate, Bronchus,

Myeloma, Tuberculosis

Meninges Intradural (extramedullary)

15%

Tumours, Meningioma, Neurofibroma, Ependymoma, Metastasis, Lymphoma, Leukaemia,

Epidural abscess

Spinal cord (intradural intramedullary)

5%

Tumours

Glioma, Ependymoma, Metastasis

Lesions at various sites of spinal cord

1). Above the fifth cervical segment – upper motor neurone signs and sensory loss of all four limbs;

2). Between fifth cervical and first thoracic – lower motor neurone signs and segmental sensory loss in the arms and upper motor neurone signs in the legs;

3). Thoracic cord – spastic paraplegia with a sensory level on the trunk;

4). Lumbosacral cord and cauda equina – lower motor neurone signs and segmental sensory loss in the legs. The spinal cord ends at approximately the T12/L1 spinal level and spinal lesions below this level can only cause lower motor neuron signs.

5). The Brown-Séquard Syndrome results if damage is confined to one side of the cord. On the side of the lesion there is a band of hyperesthesia with below it loss of proprioceptive sense and upper motor neurone signs. On the other side there is loss of spinothalamic sensation (pain, temperature) as fibers of that tract decussate soon after entering the cord.

Neurology Flashcard List

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