mesotenon-type variant of the long head of the biceps tendon

MR

arthrography: correlation between anatomic intraarticular variants of the long head of the biceps tendon (long head biceps tendon) and superior labral anterior to posterior (SLAP) lesions. a MR arthrography, sagittal SE T1-weighted. In MESO-PA anatomical variant, long head biceps tendon is partially fused to the inferior surface of the supraspinatus tendon (arrow). Contrast agent outlines acute angle between the anterior portion of the long head biceps tendon and the inferior surface of the supraspinatus (curved arrow). b Same patients as in a. MR arthrography, coronal SE T1-weighted. MESO-PA anatomical variant is associated with SLAP lesion type I. MESO-PA anatomical variant is associated with SLAP lesion type I (arrow)