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Hydroxyapatite deposition disease (HADD, calcific tendinopathy) can occur at any joint. This case shows calcification next to the triceps tendon insertion at the olecranon. #mskrad #orthotwitter #radres #radiology

9-year-old girl with pain mainly in the legs. The finding in the patella would be difficult to interpret. But along with the other findings: CRMO with typical osteolyses and adjacent bone marrow edema. #mskrad #orthotwitter #radres #radiology

Bacterial sacroiliitis with diffuse contrast enhancement around the left sacroiliac joint and extensive abscesses. Unremarkable right SIJ. Even without abscess formation, infection would have to be suspected because of the asymmetry. #mskrad #orthotwitter #radres #radiology

Radial tunnel syndrome. Note the atrophy of the supinator muscle in T1. The deep branch of the radial nerve is unremarkable before entering the supinator (arrowhead) and shows neuritis slightly more distally (arrow). #mskrad #orthotwitter #radres #radiology

Obvious fracture of the radial head. The bony avulsion of the annular ligament was missed on MRI. The small fragment is clearly visible on CT (arrowhead). #mskrad #orthotwitter #radres #radiology

I have published a new update for MRI-ESSENTIALS. Focus 1: rotator interval, bicpes pulley. Focus 2: elbow instability. Feedback is always welcome! #mskrad #orthotwitter #radres #radiology

Together with Kay G. Hermann we developed a module for the BERLIN CASE VIEWER on the topic of meniscus tears. Great interactive teaching tool! berlincaseviewer.de/module-mri-kne… #mskrad #orthotwitter #radres #radiology #berlincaseviewer

Partial tears ACL tears: always difficult. Often we do not know if the diagnosis was correct (conservative therapy). In this case, comparison with an older and later exam demonstrates the injury at the origin of the posterolateral bundle. #mskrad #orthotwitter #radres #radiology

Tear of the superficial flexor tendon (arrow) due to chronic inflammation in a 57 year-old man with rheumatoid arthritis. Synovitis in the MCP joints and impressive synovitis along the tendon sheath. (Bottom right: with contrast) #mskrad #orthotwitter #radres #radiology

Instability of the lateral meniscus. Left: Acute knee locking, examination in flexion! The next day: normal meniscal position. 3 years ago, the attachments of the post. horn were already missing (Wrisberg type of the lateral meniscus)! #mskrad #orthotwitter #radres #radiology

Rare case of a discoid MEDIAL meniscus, 14 yo boy. Note the significant degeneration with formation of a ganglion cyst causing pain. #mskrad #orthotwitter #radres #radiology

Pitfall: The arrow does not show the root of the medial meniscus but a strong meniscotibial ligament (fibrotic due to torn root???)! The root would be located anterior to the PCL, as indicated with the arrowhead. #mskrad #orthotwitter #radres #radiology

Quick info for users of the app MRI-ESSENTIALS: I have just released a new update. Content from current literature has been incorporated in the chapters Shoulder, wrist and hand, Spine and SIJ. The next update is planned for November. #mskrad #orthotwitter #radres #radiology

If you are attending RSNA in Chicago, come visit me at booth 1303 in the educators row (South Hall). I´ll show you the new WEB VERSION of MRI-ESSENTIALS! #mskrad #orthotwitter #radres #radiology

#RSNA23 Just stop by and visit us at booth 1303, South hall. I´ll show you the new web version of MRI-ESSENTIALS: mri-essentials.com #mskrad #orthotwitter #radres #radiology

It's been pretty busy lately because of the technical developments! Next year I will post new cases again. If you want, you can test the web version of MRI-ESSENTIALS (see test credentials below). There are still a few bugs to be fixed :-) #mskrad #orthotwitter #radres #radiology

The suprapatellar plica and MRI-ESSENTIALS wish you a Happy New Year 2024! 🙂 #mskrad #orthotwitter #radres #radiology

LCL knee - always a pitfall! Left: Ski injury on New Year's Day, tear of the ACL (arrow). Center: A partial tear of the lateral collateral ligament could also be suspected (arrowhead). But: It looked exactly the same a year ago! #mskrad #orthotwitter #radres #radiology

A small crown for the holy three kings. Thanks to the hydroxyapatite deposit! #mskrad #orthotwitter #radres #radiology

Skiing on New Year's Day: Fracture of the lateral tibial plateau with interposition of the lateral meniscus (arrowhead). #mskrad #orthotwitter #radres #radiology