Tumoral calcinosis - shoulder

Discussion:

Tumoral calcinosis is a rare clinical and histopathologic syndrome, characterized by lobular, calcified soft tissue masses that occur in periarticular locations, especially: the hip, elbow, shoulder, foot and wrist. The shoulder is the most commonly affected site.

Tumoral calcinosis is usually classified as primary (idiopathic or familial) or secondary. The primary form typically presents with periarticular soft tissue masses in the first or second decade of life.

The secondary form is associated mainly with chronic renal failure in hemodialysis patients, and has been attributed to secondary hyperparathyroidism.

These lesions are characterized by large, amorphous calcific densities that surround joints. In most cases, they demonstrate fluid / calcium levels (milk of calcium / hydroxyapatite crystals in suspension) (Sedimentation sign)

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