ReportFoundry - RSNA Knee MRI Challenge

Case 376

assigned

Report English

Normal articulation relationships. As of 12/2024, there is again a significantly regressing bone marrow edema in the medial femoral condyle with a diffuse residual finding. Newly diffuse edema also in the corresponding medial tibial plateau. No collapse of the previously documented subchondral insufficiency fracture in the load-bearing zone, approximately 11 mm wide. The femorotibial cartilage coverage is overall marginally emphasized and diffusely thinned, predominantly on the medial side. No clear focal deep chondropathy. Retropatellar slightly increasing subchondral bone reaction on the medial and to a lesser extent also lateral patellar facet, each with corresponding focal deep chondropathy. Increasing fluid accumulation in the previously documented radial tear of the degeneratively signal-enhanced posterior horn of the medial meniscus near the meniscus root (3/91). Lateral meniscus without detectable tear formation. ACL shows mucoid signal enhancement. PCL is unremarkable. Collateral ligaments are also intact. No significant effusion. As of 12/2024, again significantly regressing bone marrow edema in the medial femoral condyle with a diffuse residual finding. Newly discrete, diffuse edema also in the corresponding medial tibial plateau without detectable deep chondropathy. No collapse of the previously documented subchondral insufficiency fracture in the load-bearing zone, approximately 11 mm wide. The femorotibial cartilage coverage is overall marginally emphasized and diffusely thinned, predominantly on the medial side. No clear focal deep chondropathy. Retropatellar slightly increasing subchondral bone reaction on the medial and to a lesser extent also lateral patellar facet, each with corresponding focal deep chondropathy. Increasing fluid accumulation in the previously documented radial tear of the degeneratively signal-enhanced posterior horn of the medial meniscus near the meniscus root (3/91). Lateral meniscus without detectable tear formation. Slightly accentuated joint fluid.

Report English Structured

## ACL * ACL shows mucoid signal enhancement. ## MCL * Collateral ligaments are also intact. ## Medial Meniscus * Increasing fluid accumulation in the previously documented radial tear of the degeneratively signal-enhanced posterior horn of the medial meniscus near the meniscus root (3/91). ## Lateral Meniscus * Lateral meniscus without detectable tear formation. ## Medial OA * The femorotibial cartilage coverage is overall marginally emphasized and diffusely thinned, predominantly on the medial side. * No clear focal deep chondropathy. * Newly discrete, diffuse edema also in the corresponding medial tibial plateau without detectable deep chondropathy. ## Lateral OA * The femorotibial cartilage coverage is overall marginally emphasized and diffusely thinned. * No clear focal deep chondropathy. ## PF OA * Retropatellar slightly increasing subchondral bone reaction on the medial and to a lesser extent also lateral patellar facet, each with corresponding focal deep chondropathy. ## Effusion * No significant effusion. * Slightly accentuated joint fluid. ## Synovitis * [N/A] ## Baker's Cyst * [N/A] ## Contusion * As of 12/2024, there is again a significantly regressing bone marrow edema in the medial femoral condyle with a diffuse residual finding. * Newly diffuse edema also in the corresponding medial tibial plateau. * As of 12/2024, again significantly regressing bone marrow edema in the medial femoral condyle with a diffuse residual finding. * Newly discrete, diffuse edema also in the corresponding medial tibial plateau without detectable deep chondropathy. ## Fracture * No collapse of the previously documented subchondral insufficiency fracture in the load-bearing zone, approximately 11 mm wide.

## ACL
* ACL shows mucoid signal enhancement.

## MCL
* Collateral ligaments are also intact.

## Medial Meniscus
* Increasing fluid accumulation in the previously documented radial tear of the degeneratively signal-enhanced posterior horn of the medial meniscus near the meniscus root (3/91).

## Lateral Meniscus
* Lateral meniscus without detectable tear formation.

## Medial OA
* The femorotibial cartilage coverage is overall marginally emphasized and diffusely thinned, predominantly on the medial side.
* No clear focal deep chondropathy.
* Newly discrete, diffuse edema also in the corresponding medial tibial plateau without detectable deep chondropathy.

## Lateral OA
* The femorotibial cartilage coverage is overall marginally emphasized and diffusely thinned.
* No clear focal deep chondropathy.

## PF OA
* Retropatellar slightly increasing subchondral bone reaction on the medial and to a lesser extent also lateral patellar facet, each with corresponding focal deep chondropathy.

## Effusion
* No significant effusion.
* Slightly accentuated joint fluid.

## Synovitis
* [N/A]

## Baker's Cyst
* [N/A]

## Contusion
* As of 12/2024, there is again a significantly regressing bone marrow edema in the medial femoral condyle with a diffuse residual finding.
* Newly diffuse edema also in the corresponding medial tibial plateau.
* As of 12/2024, again significantly regressing bone marrow edema in the medial femoral condyle with a diffuse residual finding.
* Newly discrete, diffuse edema also in the corresponding medial tibial plateau without detectable deep chondropathy.

## Fracture
* No collapse of the previously documented subchondral insufficiency fracture in the load-bearing zone, approximately 11 mm wide.

Findings

None

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