[Unusual, tumor-like calcinosis in scleroderma. Thibièrge-Weissenbach syndrome].

In patients with progressive scleroderma, interstitial calcifications are present to a varying extent. They are mostly located in the soft tissues of the fingers, resembling points, commas or dashes. They may also appear as "calcinosis universalis" and reach a considerable size. Thus they mimic proliferative tumors. Scintigraphy, proving the existence of further calcifications can be helpful. We report the case of a female patient who presented with such a "pseudotumor" of unusual size, site and extent in the lumbar region.