Supraspinatus Partial-Thickness Tear

Fig. 6.72a,b. Bursal-side partial-thickness tears of the supraspinatus tendon. Two different cases, a Long-axis 12-5 MHz US image over the supraspinatus tendon shows focal herniation of hypoechoic bursal tissue within the defect (arrowheads). Note the thickened bursal walls (arrow) and the loss of the normal convexity of the peribursal fat at the site of the tear. GT, greater tuberosity, b Long-axis 12-5 MHz US image over the supraspinatus tendon reveals hyperechoic peribursal fat filling a small superficial defect (arrowheads) in the absence of local effusion. 

Fig. 6.92a-d. Intramuscular cyst, a Long- and b short-axis 12-5 MHz US images over the supraspinatus muscle (arrows) obtained by placing the transducer immediately posterior and medial to the acromioclavicular joint reveal an intramuscular cyst (asterisk). In this particular case, the cyst was associated with an articular-side partial-thickness tear of the supraspinatus tendon. Acr, acromion Cl, clavicle, c Oblique coronal fat-suppressed Gd-enhanced Tl-weighted and d sagittal proton density MR imaging correlations. In c, contrast enhancement is seen in the muscle tissue surrounding the cyst... 

Full-thickness tears extend from the bursal to the articular surface of the tendon. As previously stated, the term full-thickness may refer to either a complete (full-width) or an incomplete (partial-width) tendon rupture (i.e., a tear located in the anterior third of the supraspinatus which allows communi-... 

Jacobson JA, Lancaster S, Prasad A et al (2004) Full-thickness and partial-thickness supraspinatus tendon tears value of US signs in diagnosis. Radiology 230 234-242 Jarvi OH, Lansimies PH (1975) Subclinical elastofibromas in the scapular region in an autopsy series. Acta Pathol Microbiol Scand 83 87-108... 

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