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11 Figure Legends: Figure 1 US SLAP tear: Transverse US image of the posterior aspect of the glenohumeral joint shows a tear separating the posterosuperior labrum (arrow) from the glenoid. There is no evidence of associated joint effusion within the glenohumeral joint. G=glenoid, H=humeral head. Figure 2 SLAP type I: The lesion comprises fraying and degeneration of the superior labrum (*). There is no significant tear into the labrum or biceps tendon. Figure 3a SLAP type II: there is detachment of the superior labrum and the biceps insertion from the supraglenoid tubercle (arrows). Figure 3b SLAP type II: Contrast is seen tracking into a tear (arrow) within the superior labrum in this T1 FS coronal MR arthrogram image in a patient with a type II SLAP lesion. Figure 4a SLAP type III: a type III lesion is a tear of the superior labrum with a bucket handle configuration with the biceps anchor remaining intact. Figure 4b SLAP type III: T1 FS coronal MR arthrogram image demonstrating a SLAP type III bucket handle tear of the superior labrum but with a normal biceps tendon. The bucket handle fragment is seen as a separate flap of tissue (arrow). Figure 5a: SLAP Type IV: A type IV lesion describes a tear of the superior labrum

12 with a bucket handle configuration with extension into the biceps tendon. A portion of the biceps anchor remains in tact. Figure 5b SLAP Type IV: Coronal T1 FS MR arthrogram image which demonstrates a SLAP lesion with a bucket handle tear of the superior labrum and extension of contrast into the biceps tendon (arrow). Figure 5c SLAP Type IV: Sagittal T1 FS MR arthrogram image in the same patient with contrast seen tracking into the substance of the long head of the biceps tendon (arrows). Figure 6a SLAP Type VII: T1 FS MR arthrogram coronal image demonstrated a tear of the superior labrum (arrow). The full extent of the tear cannot be appreciated on this single coronal image. Figure 6b SLAP Type VII: axial PD image in the same patient which shows extension of the tear into the middle glenohumeral ligament (arrow). The ligament is seen to be torn and irregular. Note also the continuation of the tear into the posterosuperior labrum. Involvement of the middle glenohumeral ligament is in keeping with a type VII SLAP tear. Figure 7a: SLAP lesion with reverse Bankart lesion. Coronal PD FS image. There is a superior labral SLAP tear with a bucket handle fragment (arrow). Figure 7b: Axial PD FS image in the same patient. There is bone oedema within the anteromedial aspect of the humeral head in keeping with recent posterior dislocation (*). In addition there is a reverse Bankart lesion shown (arrowhead) this is one of the recognized associated features of a SLAP tear. The radiology literature describes this combination of findings as a Type VIII SLAP lesion.

13 Figure 8 a Paralabral cyst: T2 FS MR Arthrogram coronal image demonstrating a Type II SLAP lesion (arrow) in this patient with persisting pain and clicking of the shoulder. There is also a paralabral cyst lying adjacent to the superior aspect of the glenoid within the spinoglenoid notch (arrowhead). Figure 8 b Paralabral cyst: T1 FS coronal MR arthrogram image from the same patient showing the SLAP tear (arrow). Note the cyst shown in 8a fails to fill with contrast and is much less easily visualized. This case illustrates the importance of including a T2 weighted sequence to demonstrate pathology in the surrounding tissues. Figure 9 Sub Labral Recess: Coronal T1W image from MR arthrogram demonstrating a sublabral recess (arrow). A sublabral recess should have smooth margins and is located between the 1 and 11 o clock positions. The recess should extend in a supero medial direction. Figure 10 Pseudoslap Tear: Coronal T1 MR arthrogram image shows a small contrast filled sulcus between the long head of biceps tendon and the superior labrum. This 3+! 0!:.Α 0!0&&%0Α0:,%!0:2!+9. 2!:.!Φ%! 3+3: %Α&Α% %2!0+!0!Η7ΧΘ! %0Α(! Figure 11 a Buford complex: Axial T1 image from MR arthrogram showing the thickened cord like middle glenohumeral ligament (black arrow) and absence of the anterosuperior labrum. Note normal posterior labrum (white arrow). Figure 11 b Buford complex: Sagittal T1 image in the same patient showing the enlarged middle glenohumeral ligament (arrow). Figure 12 SLAP repair: Coronal T1 FS image from MR arthrogram in a patient who has undergone repair of a previous SLAP tear. There is a suture anchor within the superior glenoid (black arrow) which is causing adjacent artifact (small white arrows). This should not be misinterpreted as contrast in a recess or tear. There is also contrast

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