Case Challenge

Knee

Gain confidence interpreting Knee MRI Cases with MRI Online. Quiz yourself using real-world, interactive scrollable cases & earn CME. Try it free!

Case Review

Musculoskeletal (MSK)

Case 1 - 54-year-old male presents with right knee pain

Case 2 - 29-year-old female presents with left knee pain

Case 3 - 53-year-old female presents with posteromedial right knee mass

Case 4 - 30-year-old male presents with right knee pain after motor vehicle accident

Case 5 - 17-year-old male has patellar pain in his right knee

Case 6 - 57-year-old male presents with large mass on right knee

Case 7 - 10-year-old presents with right knee pain and swelling

Case 8 - 12-year-old female presents with left knee pain

Case 9 - 27-year-old male presents with pain and swelling in left knee

Case 10 - 57-year-old male presents with medial right knee pain

Course Evaluation

Post-Course Activities

This Power Pack is comprised of 10 unique Knee MRI cases that you can scroll through in our diagnostic web viewer to determine your findings. Quiz yourself and earn CME.

Knee MRI Cases

<div>History:&#160;This 57-year-old male presents with a large mass on his right knee.MOST LIKELY DIAGNOSIS (that could be life-threatening): Pseudo-pseudothrombophlebitisUsing the diagnostic web viewer, we have provided images that assist in telling our clinical story. Areas of significance are indicated below.<figure class="wp-block-image"><img src="https://process.fs.teachablecdn.com/ADNupMnWyR7kCWRvm76Laz/resize=width:750/https://www.filepicker.io/api/file/CGiqcB5qSBKNis3tWrwB" alt=""></figure>CLINICAL CONSIDERATIONS:This 57-year-old male presents with a large mass. What is it? But, more importantly, on these axial water-weighted MRI images, what is the potentially life-threatening finding?The high signal mass is a gastrocnemius semimembranous bursal cyst (one of the many types of Baker&#8217;s cysts). The life-threatening finding is the absence of flow phenomena in the popliteal vein. This thrombosis (arrows) can eventually result in a pulmonary embolism. When a Baker&#8217;s cyst clinically simulates a popliteal thrombophlebitis, this is called pseudothrombophlebitis. But when it actually coexists with the thrombophlebitis due to compression (as in this case) it is called pseudo-pseudothrombophlebitis.</div>

Case

What is the most likely diagnosis (that could potentially be life-threatening)?