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MR Arthrography in the Differential Diagnosis of Type II Superior Labral Anteroposterior Lesion and Sublabral Recess

Wook Jin1, Kyung Nam Ryu2, Se Hwan Kwon2, Yong Girl Rhee3 and Dal Mo Yang1

1 Department of Radiology, East-West Neo Medical Center, Kyung Hee University, Seoul 134-727, South Korea.
2 Department of Diagnostic Radiology, Kyung Hee University Hospital, 1 Hoeki-dong Dongdaemun-gu, Seoul 130-702, South Korea.
3 Department of Orthopedic Surgery, Kyung Hee University Hospital, Seoul 130-702, South Korea.


Figure 1
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  		Fig. 1A —Extension of high signal intensity. 20-year-old man with type II SLAP lesion. Fat-saturated oblique coronal T1-weighted MR image shows high signal intensity (arrow) at insertion site of biceps tendon.

 

Figure 2
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  		Fig. 1B —Extension of high signal intensity. Fat-saturated oblique coronal T1-weighted MR image posterior to A. Arrow indicates high signal intensity.

 

Figure 3
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  		Fig. 1C —Extension of high signal intensity. Fat-saturated oblique coronal T1-weighted MR image posterior to B shows high signal intensity (arrow) in posterior third of superior labrum.

 

Figure 4
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  		Fig. 1D —Extension of high signal intensity. 20-year-old man with sublabral recess. Fat-saturated oblique coronal T1-weighted MR image shows small notching (arrow) at insertion site of biceps tendon.

 

Figure 5
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  		Fig. 1E —Extension of high signal intensity. Fat-saturated oblique coronal T1-weighted MR image posterior to D.

 

Figure 6
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  		Fig. 1F —Extension of high signal intensity. Fat-saturated oblique coronal T1-weighted MR image posterior to E shows high signal intensity not extending to posterior portion of superior labrum.

 

Figure 7
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  		Fig. 2A —Direction of high signal intensity. 19-year-old man with type II SLAP lesion. Fat-saturated oblique coronal T1-weighted image shows high signal intensity (arrow) of superior labrum is pointed laterally.

 

Figure 8
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  		Fig. 2B —Direction of high signal intensity. 26-year-old man with sublabral recess. Fat-saturated oblique coronal T1-weighted image shows medially pointed high signal intensity (arrow).

 

Figure 9
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  		Fig. 3A —Shape of high signal intensity. 21-year-old man with type II SLAP lesion. Fat-saturated oblique coronal T1-weighted image shows globular and irregular high signal intensity (arrow) in superior labrum.

 

Figure 10
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  		Fig. 3B —Shape of high signal intensity. 28-year-old man with sublabral recess. Fat-saturated oblique coronal T1-weighted image shows bandlike high signal intensity (arrow) with smooth margin.

 

Figure 11
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  		Fig. 4A —Presence of concomitant anterosuperior labral tear. 19-year-old man with type II SLAP lesion. Fat-saturated axial T1-weighted image shows concomitant tear (arrows) of anterosuperior labrum. Serial images did not show Buford complex.

 

Figure 12
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  		Fig. 4B —Presence of concomitant anterosuperior labral tear. 22-year-old man with sublabral recess. Fat-saturated axial T1-weighted image shows no concomitant tear.

 

Figure 13
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  		Fig. 5A —Presence of anteroposterior extension of high signal intensity in superior labrum. 24-year-old man with type II SLAP lesion. Fat-saturated axial T1-weighted image shows anteroposterior extension (arrows) of high signal intensity in superior labrum.

 

Figure 14
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  		Fig. 5B —Presence of anteroposterior extension of high signal intensity in superior labrum. 26-year-old man with sublabral recess. Fat-saturated axial T1-weighted image shows no anteroposterior extension.

 

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