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Wk 8, Case 4, Foot/Ankle MR - Review

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Report

Patient History

47M pt c/o pain in lateral ankle radiating up lateral lower leg

Findings

ARTICULATIONS:

Bone: Unstable mildly displaced nonshouldered osteochondral defect surrounded by osteoedema located at the medial weight-bearing surface of the talar dome and measures 6mm in depth, 8mm in width and 11mm in anteroposterior dimensions.

Tibiotalar joint: No arthrosis.

Hindfoot: No arthrosis.

Midfoot: Focal penetrating chondromalacia with tiny subchondral arthropathic cysts at the talonavicular joint.

LIGAMENTS:

The anterior talofibular, calcaneofibular, posterior talofibular, lateral high ankle ligaments, syndesmosis and deltoid ligament complex are intact.

TENDONS:

Peroneus Longus/Brevis: Intact.

Posterior Tibialis: Intact.

Flexor Compartment: Intact.

Extensor Compartment: Intact.

GENERAL:

Muscles: No traumatic muscle injury. No volumetric muscle atrophy.

Soft Tissue: Unremarkable.

Plantar Fascia: Intact.

Joint Effusion: 1-2+.

Intra-Articular/Loose Bodies: None.

Impressions

1. A 6mm x 8mm x 11mm, unstable, mildly displaced, nonshouldered osteochondral defect at the medial weight-bearing surface of the talar dome.

2. Tiny focal penetrating chondromalacia at the talonavicular joint.

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

Musculoskeletal (MSK)

MRI

Foot & Ankle

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