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Case 53. Knee pain following a fall
This is a MR on a 60 y/o man w/ knee pain who had minor trauma (a fall) a week ago.
What is going on with the marrow? Is it too early for RSD? All of the epiphyses are low on T1 and Bright on the PD and T2 F/S. We, of course, have no plain films. This is sort of the reverse of the pattern I would expect for normal reconversion, since it looks like the fatty marrow is metaphyseal and diaphyseal.
Let me know what you think if you have time. I am perplexed on this one. RSD or transient osteoporosis so focal, so soon? Trauma w contusion seems unlikely since the high signal is within the epiphysis and without subchondral change or effusion. They do not look like masses. Certainly not typical of marrow reconversion. I wasn't much help here.
