Definition : teleradiology
Main Entry: tele•ra•di•ol•o•gy
Pronunciation: "tel-&-"rAd-E-'äl-&-jE
Function: noun
Inflected Form: plural -gies
: radiology concerned with the transmission of digitized medical images (as X rays, CT, MRI scans and sonograms) over electronic networks and with the interpretation of the transmitted images for diagnostic purposes
 
 
June 2005 - Tear of the Achilles Tendon

Monthly Cases

 

 

The Achilles tendon is the largest tendon in the body. It is formed by a confluence of the tendons of the gastrocnemius and soleus muscles. It inserts onto the posterior aspect of the calcaneum. It assists in plantar flexion of the foot. The Achilles tendon does not have a synovial sheath.

On MRI

  • Partial Rupture:

    • There is  partial continuity of a portion of the tendon fibres on at least one sagittal section. There is no tendinous gap.

    • The tendon may be thickened and usually exhibits focal areas of intermediate signal intensity on the T1W images and increased signal intensity on the T2W images due to edema and/or hemorrhage.

    • It may be difficult to differentiate between tendinitis and partial tears as the two often coexist. In uncomplicated chronic tendinitis there is focal or diffuse thickening of the tendon without increased intrasubstance signal intensity.

  • Complete Rupture:
    • There is discontinuity of the tendon (unless the tendon edges are overlapping) with intervening fluid, fat or hemorrhage.

    • The proximal fragment is retracted with fraying. The distal fragment is lax and buckled. Sagittal images help in ascertaining the distance between the two fragments.

    • Hemorrhage, edema and inflammation may be seen in the peritendinous soft tissues. There may be fluid collection in the paratenon anterior to the tendon. 


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