ReportFoundry - RSNA Knee MRI Challenge

Case 326

assigned

Report English

Medial Compartment: Mild bone edema in the medial tibial plateau (Series 5/ Image 25). Deep cartilage defect in the dorsal weight-bearing zone of the medial femoral condyle (Series 6/ Image 14). Complex tear of the posterior horn of the medial meniscus with radial and vertical components (Series 5/ Image 27, Series 6/ Image 13, Series 3/ Image 114). Intact MCL. Lateral Compartment: Normal bone marrow signal. Intact cartilage. Mucoid degeneration and fraying of the posterior horn of the lateral meniscus. Intact LCL. Femoropatellar Joint and Trochlea: Focal deep cartilage defect on the medial patellar facet with adjacent subchondral bone edema (Series 4/ Image 13). Mild superficial cartilage irregularities on the lateral patellar facet. Normal appearance of the quadriceps and patellar tendons. Normal appearance of Hoffa's fat pad. Cruciate Ligaments: Intact cruciate ligaments. Musculature and Other Soft Tissues: Mild joint effusion with thickened synovium. Fluid-filled Baker's cyst. Moderate chondropathy in the medial dorsal femoral condyle and retropatellar area with deep cartilage defects on the medial patellar facet and adjacent subchondral bone edema. No full-thickness cartilage defect. - Complex tear of the posterior horn of the medial meniscus with radial and vertical components with adjacent mild stress edema in the medial tibial plateau. - Mild joint effusion with reactive synovitis. - Incidental finding: Fluid-filled Baker's cyst.

Report English Structured

## ACL * Intact cruciate ligaments. ## MCL * Intact MCL. ## Medial Meniscus * Complex tear of the posterior horn of the medial meniscus with radial and vertical components (Series 5/ Image 27, Series 6/ Image 13, Series 3/ Image 114). * Complex tear of the posterior horn of the medial meniscus with radial and vertical components with adjacent mild stress edema in the medial tibial plateau. ## Lateral Meniscus * Mucoid degeneration and fraying of the posterior horn of the lateral meniscus. ## Medial OA * Deep cartilage defect in the dorsal weight-bearing zone of the medial femoral condyle (Series 6/ Image 14). * Moderate chondropathy in the medial dorsal femoral condyle and retropatellar area with deep cartilage defects on the medial patellar facet and adjacent subchondral bone edema. * No full-thickness cartilage defect. ## Lateral OA * Intact cartilage. ## PF OA * Focal deep cartilage defect on the medial patellar facet with adjacent subchondral bone edema (Series 4/ Image 13). * Mild superficial cartilage irregularities on the lateral patellar facet. * Moderate chondropathy in the medial dorsal femoral condyle and retropatellar area with deep cartilage defects on the medial patellar facet and adjacent subchondral bone edema. ## Effusion * Mild joint effusion with thickened synovium. * Mild joint effusion with reactive synovitis. ## Synovitis * Mild joint effusion with thickened synovium. * Mild joint effusion with reactive synovitis. ## Baker's Cyst * Fluid-filled Baker's cyst. * Incidental finding: Fluid-filled Baker's cyst. ## Contusion * Mild bone edema in the medial tibial plateau (Series 5/ Image 25). * Complex tear of the posterior horn of the medial meniscus with radial and vertical components with adjacent mild stress edema in the medial tibial plateau. ## Fracture * [N/A]

## ACL
* Intact cruciate ligaments.

## MCL
* Intact MCL.

## Medial Meniscus
* Complex tear of the posterior horn of the medial meniscus with radial and vertical components (Series 5/ Image 27, Series 6/ Image 13, Series 3/ Image 114).
* Complex tear of the posterior horn of the medial meniscus with radial and vertical components with adjacent mild stress edema in the medial tibial plateau.

## Lateral Meniscus
* Mucoid degeneration and fraying of the posterior horn of the lateral meniscus.

## Medial OA
* Deep cartilage defect in the dorsal weight-bearing zone of the medial femoral condyle (Series 6/ Image 14).
* Moderate chondropathy in the medial dorsal femoral condyle and retropatellar area with deep cartilage defects on the medial patellar facet and adjacent subchondral bone edema.
* No full-thickness cartilage defect.

## Lateral OA
* Intact cartilage.

## PF OA
* Focal deep cartilage defect on the medial patellar facet with adjacent subchondral bone edema (Series 4/ Image 13).
* Mild superficial cartilage irregularities on the lateral patellar facet.
* Moderate chondropathy in the medial dorsal femoral condyle and retropatellar area with deep cartilage defects on the medial patellar facet and adjacent subchondral bone edema.

## Effusion
* Mild joint effusion with thickened synovium.
* Mild joint effusion with reactive synovitis.

## Synovitis
* Mild joint effusion with thickened synovium.
* Mild joint effusion with reactive synovitis.

## Baker's Cyst
* Fluid-filled Baker's cyst.
* Incidental finding: Fluid-filled Baker's cyst.

## Contusion
* Mild bone edema in the medial tibial plateau (Series 5/ Image 25).
* Complex tear of the posterior horn of the medial meniscus with radial and vertical components with adjacent mild stress edema in the medial tibial plateau.

## Fracture
* [N/A]

Findings

None

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