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Classical signs and appearances in pediatric neuroradiology: a pictorial review.

Atalar MH, Salk I, Egilmez H - Pol J Radiol (2014)

Bottom Line: Radiological practice includes classification of illnesses with similar characteristics through recognizable signs.In this report, twenty-eight important and frequently seen neuroradiological signs in childhood are presented and described using X-rays, computed tomography (CT), magnetic resonance (MR) images, illustrations and photographs.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Cumhuriyet University, School of Medicine, Sivas, Turkey.

ABSTRACT
Radiological practice includes classification of illnesses with similar characteristics through recognizable signs. In this report, twenty-eight important and frequently seen neuroradiological signs in childhood are presented and described using X-rays, computed tomography (CT), magnetic resonance (MR) images, illustrations and photographs.

No MeSH data available.


Axial non-contrast CT image showing typical “key-hole” appearance of cisterna magna communicating with a dilated 4th ventricle (star).
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f13-poljradiol-79-479: Axial non-contrast CT image showing typical “key-hole” appearance of cisterna magna communicating with a dilated 4th ventricle (star).

Mentions: The posterior fossa dimensions are normal in Dandy-Walker variants. There is a mild vermian hypoplasia and thus the vallecula becomes widened between the cerebellar hemispheres under the vermis. The fourth ventricle and cisterna magna communicate with each other through this wide vallecula. This appearance on axial CT and MR images is called “keyhole sign” (Figure 13) [16].


Classical signs and appearances in pediatric neuroradiology: a pictorial review.

Atalar MH, Salk I, Egilmez H - Pol J Radiol (2014)

Axial non-contrast CT image showing typical “key-hole” appearance of cisterna magna communicating with a dilated 4th ventricle (star).
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4274733&req=5

f13-poljradiol-79-479: Axial non-contrast CT image showing typical “key-hole” appearance of cisterna magna communicating with a dilated 4th ventricle (star).
Mentions: The posterior fossa dimensions are normal in Dandy-Walker variants. There is a mild vermian hypoplasia and thus the vallecula becomes widened between the cerebellar hemispheres under the vermis. The fourth ventricle and cisterna magna communicate with each other through this wide vallecula. This appearance on axial CT and MR images is called “keyhole sign” (Figure 13) [16].

Bottom Line: Radiological practice includes classification of illnesses with similar characteristics through recognizable signs.In this report, twenty-eight important and frequently seen neuroradiological signs in childhood are presented and described using X-rays, computed tomography (CT), magnetic resonance (MR) images, illustrations and photographs.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Cumhuriyet University, School of Medicine, Sivas, Turkey.

ABSTRACT
Radiological practice includes classification of illnesses with similar characteristics through recognizable signs. In this report, twenty-eight important and frequently seen neuroradiological signs in childhood are presented and described using X-rays, computed tomography (CT), magnetic resonance (MR) images, illustrations and photographs.

No MeSH data available.