Image
Biceps tendon dislocation; posterior to subscapularis.
- Image ID
- MPX1401_synpic16223
- Case U_id
- MPX1401
- Modality
- MR · MR T2* gradient,GRE,MPGR,SWAN,SWI
- Plane
- Axial
- Location
- Musculoskeletal (Spine and Muscles)
- Age / Sex
- 54 / male
- Caption
- Image 1: Axial FSE right shoulder showing long head biceps tendon medial to bicipital groove.
- ACR Codes
- 4.4
Clinical case
- History
- 54 y/o man with right shoulder pain.
- Findings
- Bicipital groove is empty. Long head of biceps tendon is medial to lesser tuberosity and posterior to subscapularis tendon. Associated LHBT tear and full-thickness supraspinatus tear are seen.
- Differential Diagnosis
- Empty bicipital groove: -Long head of biceps tendon rupture -Long head of biceps tendon dislocation
- Case Diagnosis
- Biceps tendon dislocation; posterior to subscapularis.
Topic
- Category
- Trauma
- ACR Code
- 4.4
Disease discussion
The long head of the biceps tendon (LHBT) arises from the superior glenoid tubercle of the scapula. After traversing the joint deep to the coracohumeral ligament, it enters the bicipital groove and is covered by fibers of the transverse humeral ligament. LHBT dislocations are commonly associated with other abnormalities, particullary rotator cuff tears (RCT) (1). In one series, patients with anterior rotator cuff (subscapularis tendon) tears also had LHBT dislocations 78% of the time (2).