Case report: atypical lipomatous tumor with unusual extensive metaplastic ossification.

[well-differentiated liposarcoma]

The presence of metaplastic ossification within atypical lipomatous tumor /well-differentiated liposarcoma (ALT /WDLPS ) is a rare occurrence . When present , bone formation is most often found in association with a dedifferentiated component arising within the primary tumor . It is important for the radiologist not only to recognize the differential diagnosis of a calcified or ossified soft tissue mass but also be aware of the various soft tissue neoplasms , both aggressive and non-aggressive , that may show such features . We report a case of ALT /WDLPS with unusual extensive metaplastic bone formation without an element of dedifferentiated liposarcoma .

Diseases
Validation

Diseases presenting "unusual extensive metaplastic bone formation without an element" symptom

dedifferentiated liposarcoma

well-differentiated liposarcoma

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