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Wk 6, Case 1, Shoulder MR - Review

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Report

Patient History

52 yo M with right shoulder pain and slight limited ROM, ongoing for 3 months. No known injury.

Findings

ROTATOR CUFF: Concealed interstitial delamination of the rotator cable and conjoined tendon involving the humeral and articular surfaces.

High-grade, near full-thickness humeral side tear of the subscapularis tendon measuring 2-2.5cm in transverse length.

Derangement of the coracohumeral transverse ligament.

SUBACROMIAL/SUBDELTOID BURSA: Nominal diffuse peritendinobursitis.

Mildly thickened coracoacromial ligament.

Type 2/curved acromion without downsloping.

MUSCLES (ROTATOR CUFF/DELTOID, TRAPEZIUS, PECTORALIS): Normal muscle girdle.

BICEPS TENDON: Intraarticular dislocation of the long head of the biceps tendon. Saucerized hypertrophic tendinosis and interstitial delamination of the intraarticular or arcuate segment.

AC JOINT: Mild AC joint osteoarthrosis.

CORACOCLAVICULAR LIGAMENTS: Intact.

SUBACROMIAL ARCH/OUTLET: Slightly narrowed.

SUBCORACOID ARCH: Narrowed.

GLENOHUMERAL JOINT: No arthropathy. No signs of capsulitis.

GLENOID LABRUM: Chronic-appearing, saucerized nondisplaced bucket-handle tear of the superior labrum extending from anterior to posterior with extension to the biceps anchor. No paralabral cysts.

BONES: No acute fracture or evidence of glenohumeral dislocation. Mild posterior decentering of the humeral head.

SUBCUTANEOUS SOFT TISSUES: Unremarkable.

AXILLA: Unremarkable.

Impressions

1. Right shoulder biceps pulley mechanism injury with high-grade near full-thickness humeral side tear of the subscapularis tendon, full-thickness tears of the coracohumeral and transverse ligaments; intra-articular dislocation of the long head of the biceps tendon.

2. Chronic-appearing, saucerized, bucket-handle SLAP type 4 tear of the superior glenoid labrum that extends to the biceps anchor.

3. Mild confluent tendinosis of the rotator cable and conjoined tendon.

Case Discussion

Faculty

Stephen J Pomeranz, MD

Chief Medical Officer, ProScan Imaging. Founder, MRI Online

ProScan Imaging

Gitanjali Bajaj, MD

Assistant Professor

University of Arkansas for Medical Sciences

Edward Smitaman, MD

Clinical Associate Professor

University of California San Diego

Brian Y. Chan, MD

Assistant Professor of Musculoskeletal Radiology

University of Utah

Tags

Shoulder

Musculoskeletal (MSK)

MRI

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