We report a case of a tumoral calcinosis mimicking the appearance of recurrent osteosarcoma of the left femur and tibia in a 29-year-old woman with a history of osteosarcoma and chronic renal failure. Both processes can appear radiographically and histologically similar. Due to loosening of the orthopedic hardware, our patient underwent surgical revision and biopsy. We review the imaging appear...

Calcinosis cutis is an uncommon condition characterized by the deposition of calcium salts in the subcutaneous tissues of the body. Calcifications can also occur in a variety of other clinical settings and can be subjected to fine-needle aspiration (FNA). Since cutaneous calcific deposits may clinically mimic a tumor, it is feasible to diagnose them by FNA cytology (FNAC). We reported a case of...

An 8-year-old, castrated male, Schnauzer dog was presented for evaluation of gradually worsening erythematous papules. Physical examination revealed multiple erythematous papules having a firm, gritty texture located in bilateral ears, dorsal midline, perianal and inguinal area. Skin biopsy revealed aberrant structure, characterized by atrophic epidermal-dermal layer structure with granular mat...

A 46-year-old woman under 6-year haemodialysis was admitted for uncontrollable hip pain. An X-ray film revealed calcified mass around the 'left femur head', which was diagnosed as calcium deposition by percutaneous biopsy. Calcinotic tissues were removed surgically, and the resected specimen revealed tumoral calcinosis caused by low bone turnover. A complete resolution of calcinotic lesions aro...

The clinical and pathological features are described of a case of pulmonary calcinosis complicating cystic disease of the renal medulla. A histopathological study of the lung revealed calcification in the alveolar walls and in the blood vessels, predominantly in the pulmonary veins and venules. The calcified deposits were also studied by electron microscopy, and appearances suggestive of active...