Tumoral calcinosis is a rare disorder with the calcified masses in subcutaneous tissues. We report herein a fourteen-year-old boy, in whom the calcified lesions involved the soft tissues in the anterior part of the knee joint, iliac fossa and anterior of leg with abscess formation and periodically, a chalky semifluid material extruded through several cutaneous sinuses.

In laboratory findings ESR was normal, gastric washing was negative, serum level of calcium, phosphor and PTH were normal, alkaline phosphates was 618 IU/L and PPD was negative, Chest X-ray and CT-Scan of thorax were normal. Radiography of right leg demonstrate platy and linear deposition of calcium in distal of tibia (fig 1)and a typical appearance of amorphous, cystic, and multilobulated calcification in iliac fosse .( 2Fig) a

http://www.pediatriconcall.com/fordoctor/viewersChoice/tumoral_calcinosis.asp