74 y/o patient with a history of evaluate shoulder mass.
For those of you who may not know, Old Faithful is a geological phenomenon in Yellowstone National Park in the state of Wyoming.😀
I have seen this sign defined and described both with and also without arthrographic contrast.
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[OF23.jpg]
[Old Faithful1.jpg]
[Old Faithful2.jpg]
[Old Faithful3.jpg]
[Old Faithful4.jpg]