malignant osteoid

malignant osteoid

A histopathological change that is one of the defining characteristics of osteosarcoma.

Imaging
Fluffy radiodense infiltrates.
References in periodicals archive ?
Multiple sections from the polypoid tumor showed a highly pleomorphic neoplasm composed of myxoid spindle cell sarcomatous elements, more closely packed spindle cells with malignant osteoid production, and large numbers of multinucleated giant cells (Figure).
Moreover, the regularly spaced spicules of woven bone seen in FD are not present in osteosarcoma, where malignant osteoid is often deposited in broader and irregular trabeculae.

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