MCQs of Central Nervous System ( Radiology)

(MCQs of Central Nervous System ( Radiology 1. Maximum antero-posterior length and depth of normal size sella turcica is ? A . 17mm and 14mm.. B. 10mm and 5mm C. 5 mm and 10mm. D. 15mm and 20mm. 2. Enlargement and erosion of the sella could be due A .Pituitary tumour. B. adrenal tumour. C. thyroid tumour. D. parathyroid tmour. 3. First and most important sign of raised intracranial pressure in skull x-ray of Infants. A. Erosion of the sella turcica. B. Sutrural Diastasis. C. Pineal gland displacement. D. Increased convolutional markings with craniostenosis. 4. Raised Intracranial Pressure in adults is seen in lateral view of skull as.. A. Pineal displacement. B. Sutural Diastasis .C. Increased convolutional markins .D. Erosion of the sella turcica 5. Generalised premature fusion of the skulll sutures in infant results in A. Oxycephalay B. Trigonocephalay C .Microcephalay D. Scaphocephaly.

6. Pineal Gland Displacement in Towne's view of skull is important sign of A. Mass lesion in adult.. B. Normal variation. C. Mass lesion in New Born only. .. D. No significance of displacement.. 7. Pineal Gland Calcification is physiological ( normal) up to. A. 3 to 5 mm diameter. B. 10 to 12 mm diameter. C. 15 to 20 mm diameter. D. 20 to 25 mm diameter. 8. In which skull x-ray view, the sella turcica is best seen ? A. B. C. D.

Skull lateral view. Postero-lateral view. Antero-posterior view. Oblique view.

9. Displacement of calcified pineal gland in mass lesion is best seen in A, lateral view of skull. B. Postero-anteiror of skull. C.. Towne's view of skull. D. Antero-posterior view of skull. 10. Anterior Fontanel closes in children at A. B. C.

D.

3 to 6 months. 6 to 10 months. 10 to 12 months 15 to 18 months.

11. Posterior Fontanel closes in children at A. B. C. D.

3 to 6 months. 6 to 10 months. 10 to 12 months. 15 to 18 months.

12.Erosion of sella turcica without suture diastasis in a Child less than 10 years of age is likely be due to. A. B. C. D.

Local erosive pathological lesion. Normal variation. Raised intracranial pressure. Congenital Abnormal..

13. Skull suture diastasis term used for A.

B. C. D.

Abnormal wide skull suture in children.. Abnormal wide skull suture in adult.. Congenital abnormal skull sutures. Fused skull sutures.

14.Widening of skull sutures in children is abnormal if it is more than A. B.

C. D.

3 mm. 2 mm 1 mm Non of above.

15.First Investigation of choice in Head Injury ABCD-

CT Scan. Ultrasound. MRI Angiography.

16.Lesions of the same density in CT Scan image are called A. Hypodense B. Isodense. C. Hyperdense. D. Mixed density. 17.Aqueduct Stenosis causes A. Non communicating Hydrocephalus. B. Communicating Hydrocephalus. C. Dilated Fourth ventricle .. D. Dilated left lateral ventricle ..

18.Total volume of CSF ( cerebro spinal fluid) is about A. B. C. D.

100ml. 110ml 200ml. 150ml.

19.Displacement of mid line intracranial structures to opposite side by tumour is called A. B. C. D.

Enhancement. Non enhancement. Mass effect. Hyperdense

20.Cerebrospinal fluid is secreted by A. B. C. D.

Choroid Plexusus in the lateral ventricles. Pineal Gland. Pacchionian granulations. Tentorium

21.Cerebral Infarction appear in CT scan image as A. B. C. D.

Hyperdense area. Hypodense area Isodense area Hypointense area.

22.Intracerebral Hemorrhage appear in CT scan image as A. B. C. D.

Hyperdense area.. Hypodense area.. Isodense area. Hypointense area.

23.Meningioma appear in CT scan image as A.

B. C. D.

Hyperdense area. Hypodense area. Isodense area Hypointense area.

24.Cerebrospinal ( CSF ) CT density ( CT Hounsfield Unit) is A. B. C.

D.

-1000 -100 0-10 200-1000

25. In a patient of suspected cerebral infarction with cardiac pacemaker, which radiological investigation is contraindicated.. A. MRI B. CT Scan C. Scintigraphy. D. Angiograhy. 26.First imaging technique of choice in neonates & young infants to rule out hydrocephalus is A. B. C. D.

CT Scan MRI Ultrasound Plain x-ray of skull.

27.First line of imaging investigation for spinal trauma is A. B. C. D.

X-ray of spine. CT scan. MRI Ultrasound.

28. A congenital defect in which the spinal cord is split into two by a bony spicule or fibrous band is called A. B. C.

D.

Meningocele. Meningomyelocele. Diastematomyelia. Spina Bifida.

29.Defect in pars interarticularis of lumbar spine is known as A. B. C. D.

Spondylolisthesis. Spondylolysis. Spondylosis. Spondylitis.

30. A Congenital defect in skull or spine in which the herniation of meninges are present. A.

B. C. D.

Diastematomyelia Meningocele. Meningomyelocele. Encephalocele.

31.A congenital defect in vertebral column in which there is herniation of meninges and substance of the spinal cord is called A. B. C.

D.

Meningocele. Meningomyelocele. Diastemetomyelia.. Encephalocele.

32.A congenital or traumatic defect in skull in which there is herniation of portion of brain is called A. B. C. D.

Encephalocele. Meningocele. Meningomyelocele.. Encephaloma.

33.Narrowing of the lumbar spinal canal due to osseous or ligamentous structures is called absolute spinal canal stenosis if the AP ( antero-posterior ) diameter is A. B. C. D.

less than 10mm.. less than 14mm. less than 15mm less than 12mm.

34. Rupture of the annulus fibrosis and escape of the nucleus pulposus in the spinal canal is called. A. B. C. D.

Disc herniation. Meningocele. Spondylolysis. Spondylolisthesis.

35. Deformity of the bony spinal canal is best seen by A. plain x-ray of spine. B. CT scan. C. MRI D. Ultrasound. 36.Spinal cord injury is best seen by A. B. C.

D.

CT scan. Plain x-ray. Ultrasound. MRI

37. X-ray of the spinal cord and its nerves in the spinal canal after injection of water soluble contrast medium in the subarachnoid space is known as A. B. C. D.

Discography. Myelography. Angiography. CT myelography.

38. Lumbar puncture is safe through any intervertebral disc below the A. T 12 ( Thoracic 12 ) B. L1 ( Lumbar 1 ) C..L2 ( Lumbar 2 ) D. T 11 ( ( thoracic 12)

level. level. level. level

39. Lumbar puncture for myelography is contraindicated in the patient having A. B. C. D.

High blood pressure Raised intracranial pressure. Well hydrated Patient. Back pain.

40.Intraventricular haematoma can not be seen by ultrasound in A. B.

C. D.

Neonate with a large head. Adult Patient Head Large posterior fontanel. In non communicating Hydrocephalus.

41. Which set of three imaging modalities is correct for diagnosis of lumbar disc herniation A. B. C. D.

Plain x –ray, Ultrasound & angiography. Myelography, CT scan & MRI. Ultrasound, myelography, angiography. CT, MRI & angiography.

42. The best non invasive imaging method for diagnosis of disc herniation with no radiation is A. B. C. D.

Plain x-ray. CT scan. Myelography. MRI.

43. In the following, which is the best non invasive method for diagnosis of disc herniation. ? A. B. C. D.

Myelography. CT scan. Ultrasound. Plain x-ray.

44. At what level is the conus medullaris ( spinal cord termination )? A. T12 - L1 B. L1 - L2. C. L2 - L3. D. T11 - T12

45. Choice of imaging investigation to exclude intracerebral hemorrhage in adult.. A.MRI. B.CT scan.. C.Ultrasound. D.Angioraphy. 46.In MRI Image, the darker tissue in comparison to adjacent surrounding tissues is called A. B. C. D.

Hypointense. Hyperintense. Isointense. Hypodense.

47.In MRI image the bright tissue in comparison to adjacent surrounding tissues is called A Hyperdense. B Hyperintense. C. Hypointense D .Isodense. 48. The dural sac in spinal canal usually ends at the level of A. T12 ( Thoracic twelve) B. L2 ( Lumbar two) C. L5 ( Lumbar five) D. S2 ( Sacral two).

49.First choice of imaging investigations in intracerebral hemorrhage case of head trauma ? A.. MRI. B Plain CT Scan C. Plain x-ray. D. IV Contrast enhanced CT scan. 50.In suspected Syringomyelia ,the choice of investigation is A. CT scan. B. Myelogram. C. Angiography. D.MRI. 51.Location of herniated disc in the spinal canal is in. A. Intramedullary compartment B .Extradural compartment. C. Extramedullary intradural compartment. D. Extraspinal . 52.Location of Meningioma in the spinal canal is in A. Extradural compartment. B. Intramedullary compartment. C. Intradural extramedullary compartment. D.Extraspinal 53. What imaging invasive technique used to diagnose carotid artery stenosis. ? A.CT Angiography. B.CT Myelography. C.MR Angiography. D.Carotid Angiography.