Racing car sign (callosal dysgnesis)

The racing car sign refers to widely spaced lateral ventricles due to agenesis of the corpus callosum with intervening Probst bundles. Appearances on axial MRI or CT are reminiscent of a formula one car seen from above, with the tires represented by the widely spaced frontal horns, and the dilated trigones (colpocephaly).

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Article information

rID: 1950
Section: Signs
Synonyms or Alternate Spellings:

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    Figure 1: illustration - racing car sign
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    'Racing car' sign...
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    Case 5
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    Car racing sign
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