What are the MR arthrography characteristics that differentiate an anterior sublabral recess from a labral tear?
MR arthrography can differentiate a normal anterior sublabral recess from a labral tear based on specific morphological characteristics.
Recesses occur as normal variants in the anteroinferior part of the acetabulum. Location in the 8-o'clock position, linear shape of contrast material interposition, partial separation of the labrum, and absence of perilabral abnormalities are characteristics of a recess.
Studler et al. (Wed,) studied this question.
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