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Coccyx lesion 39F MRI please help

Jerrold Mink shared this reference https://www.ajronline.org/doi/10.2214/AJR.10.4460 It’s a small series….but no benign notochordal rest enhanced, and all the chordomas did. I recommended a contrast exam. I’m hoping it doesn’t enhance. Then I guess I’d have to decide whether to follow it up in a year or two…. I’ll share the contrast images when she returns. […]

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Soft tissue mass.

Dear OCAD, I need help with the diagnosis of this: 57yo F with soft tissue mass palpable near the basis of 5th metatarsal, since 3 months. US: hypoechogenous solid mass, no Doppler inside, little bit of posterior wall enhancement. No calcification. There is something which could look like a punctum… But I’ve had experiences and

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OCAD – Opinion please

Many thanks to everyone who replied to me. The answers are: Synovial osteochondromatosis Consider synovial osteochondromatosis with enhancing chondroid portion. Soft tissue chondroma, calcified paralabral cyst. It looks too “mass-like” for calcific periarthritis. The cases of this I’ve seen of CP have hypoechoic and punctuate calcific foci surrounded by ill defined T2 hyperintensity. I would

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29M 2 years worsening lateral midfoot pain, CT, I have a question

Referred by a podiatrist who was looking for cuneocuboid degenerative joint disease or fracture, and indicated clinical symptoms of sinus tarsi syndrome.I have no other imaging….podiatrists often do their own XRs, but I don’t have them. There is an obvious mineralized eccentric lesion thinning and expanding the medial cortex of the cuboid (there might be

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Rapid KV-switching DECT for Gout

Dear OCAD- I’m seeking guidance, recommendations, or other observations regarding rapid KV-switching single-source DECT for gout imaging. We have a GE Revolution Apex rapid KV-switching DECT at our institution and have started doing gout imaging. However, I’ve questioned its accuracy. Specifically, I have noticed frequent green encoded pixelation (or what’s considered MSU crystals) within tendons.

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