Characteristic imaging findings of idiopathic tumoral calcinosis
Circular or oval, well-demarcated masses of calcium, usually located about joints
Direct involvement of the bones or joints is rare (bony erosion by anadjacent mass of calcification is seen on rare occasions)
radionuclide bone scan may reveal intense uptake in the calcific masses
The calcified deposits appear white on CT and dark on MR -- either study may demonstrate fluid-fluid levels within some of these masses.
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