[MR arthrographic findings of SLAP lesion type V].
OBJECTIVE
The purpose of this study was to determine the findings of MR arthrography of the shoulder and to assess the role of MR arthrography in the diagnosis of superior labrum anterior to posterior (SLAP) lesion type V.


METHODS
Two radiologists retrospectively reviewed fat-suppressed T1-weighted MR arthrography images of six patients who were diagnosed with SLAP lesion type V by arthroscopy. Each imaging plane, including the transverse, oblique coronal, oblique sagittal, and oblique transverse in abductor external rotation (ABER) position were evaluated for the following three findings: tear of the superior labrum at biceps tendon insertion, Bankart lesion, and continuity of the two former findings.


RESULTS
Tear of the superior labrum was shown in all patients on oblique coronal images. Bankart lesion was noted in five patients on the transverse images and in four on the oblique sagittal images. On the oblique transverse images in ABER position, Bankart lesion was shown in all patients. The continuity of the two former findings was noted in three patients on the ABER positioned images. Therefore, three patients could be diagnosed as having SLAP lesion type V by MR arthrography in our series.


CONCLUSIONS
It is difficult to detect all three findings of SLAP lesion type V in one imaging plane, however, a combination of multi-directional images may increase the feasibility of MR arthrography in diagnosing SLAP lesion type V.
Suyama
Jumpei
J
Department of Radiology, Showa University School of Medicine.
Fujita
Akifumi
A
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007592:Joint Diseases / Q000145:classification / Q000175:diagnosis* / Q000473:pathology; D007593:Joint Instability / Q000175:diagnosis / Q000473:pathology; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D012189:Retrospective Studies; D012785:Shoulder Joint / Q000473:pathology*; D020069:Shoulder Pain / Q000175:diagnosis / Q000473:pathology