A member asked:

I have fluid on my knee, a lot of fluid. mri didn't show anything wrong. had it drained and checked, no infection or crystals. fluid returned. help?

3 doctors weighed in across 2 answers

Not everything look: We need to know more about this to answer your question. What is the cell count? How much volume? Is this the only joint? There are sometimes problems with the labs finding crystals. A good rheumatologist can find crystals that a lab does not. Sometimes you need to have an apatite stain. This is not routinely done. Clia does not allow rheumatologists to look for crystals as a waived test.

Answered 12/6/2020

6.1k views

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Dr. Mark Weston answered

Specializes in Orthopedic Spine Surgery

Synovial biopsy: Next step of work up diagnostic scope painless atraumatic effision shortlist look up pvns.

Answered 7/5/2012

6k views

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