Extensor carpi ulnaris pathology

[Ray Chien-Hsing Chen]

Steve
This is a badminton player.
Video 1 showed some peritendon stuff.
Video 2 showed doppler in LAX
Video 3 showed doppler in SAX, I can also see retinaculum thickening.

Is there any possibility of rheumatoid disease?
How do differentiate between overuse and rheumatoid?

thanks
Ray

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[Stephen Bird]

Hi Ray,

If it is rheumatoid I look for an erosion in the styloid process of the ulna,

I can’t see one here,

But I think I can see some crystals in the area of the TFCC,

This is a common location for CPPD deposition,

A plain radiograph may show CPPD in the TFCC area,

There is certainly tenosynovitis in the ECU area and this always makes me suspicious of rheumatoid and also gout.

A plain radiograph and a blood workup will help here.

Steve.

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