Tumoral calcinosis is an uncommon disease of unknown etiology characterized by the presence of single or multiple lobulated, para-articular, cystic soft tissue productions. Hyperphosphatemia is the only biological abnormality which can be detected. The honeycomb roentgenographic pattern is characteristic. CT scan and ultrasound are useful in showing the extra-articular location of the mass. The treatment is surgical and the prognosis is good.
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