Thumbprint sign

Thumbprint sign

In radiology, the thumbprint sign is a finding on a lateral C-spine x-ray that suggests the diagnosis of epiglottitis. [Jaffe JE. Acute Epiglottits. eMedicine.com. Available at: [http://www.emedicine.com/Radio/topic263.htm http://www.emedicine.com/Radio/topic263.htm] . Accessed on: December 21, 2006.] The sign is caused by a thickened free edge of the epiglottis, which causes it to appear more radio-opaque than normal on Xray, resembling the distal thumb.

References

External links

* [http://www.virtualpediatrichospital.org/providers/ElectricAirway/RadImages/EpiLateralX-Ray.jpgImage of thumbprint sign]


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