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Here’s a relatively rare instance of a well visualised OPL on routine knee MRI. In this case the main lateral insertion is at the fabella. Screenshots attached. Have a great day everyone. Andrei

Apparently this is just a very small os calcanei secundarium.Hilary sent this great reference: #9 = os calcanei secundarium. Thanks OCAD! -KS Begin forwarded message: From: Ken Subject: Not in Keats Date: January 8, 2025 at 2:08:20 PM EST To: ocad-msk Reply-To: schreibman Does anyone know the name of this accessory ossicle?I can’t find it in

Additional response, thanks! I like this for complex intratendinous ganglion, Phil. To tie h/o past surgery, it could have been background mucoid degeneration with a seroma that grew out of control. I have seen pretty large ganglia, not quite as big as this, within the substance of the PTT and peroneals. My two cents. On

Would you help with an opinion on this! F/50yr, Come in to hospital because of left orbital swelling and multiple scalp masses. Am thinking it’s a Meningeal Hemangiopericytoma/fibrous tumor – but due to it being multifocal do you have any opinions ? Thank you in advance. Simon

I think an atypical lipoma with focal areas of fat necrosis should be among the differentials. Any trauma in the history? Deep growing quite large fatty lesion – I think surgical removal of the mass will bring the diagnosis. /Gunnar I was inclined to report this as a parosteal lipoma, but cases I have seen

I am sharing this case for consultation at the request of Mario Maas.He (and I) wish you all Happy holidays. ***Please send your comments to Dr. Maas directly***

20 year old patient imaged for chronic instability. Small soft-tissue mass at the proximal LBT in its intra-articular segment. Makes me think of GCT or maybe fibroma. Probably asymptomatic. What do you think? Cheers, Andrei

Would you please help me with an opinion? 66 F (nun), no trauma, Rheumatoid arthritis stage IV since 2018, chronic pain, inflammatory blood test positive, but not septic. A doctor sticked a niddle months ago in the joint to deliver some corticosteroids for the pain. I reported severe degeneration secondary to inflammation, effusion, erosions, synovitis.

Hi everyone 50 y.o. male with persistent lateral pain 6 months after trauma. I’m not sure about the distal peronaeus longus tendon: are those intratendinous split lesions or just normal appearance? My "sentiment" is that it’s more or less normal, or age appropiate. I don’t want to overdiagnose this. There’s also a visible sprain of