Findings

Note the finely woven, eosinophilic osteoid surrounded by bone forming tumor cells with pleomorphic and hyperchromatic nuclei.

Impression

Osteosarcoma

Pathology Pointer

Osteosarcoma usually arises de novo, but it may occur as a complication of an underlying bone disorder.

Preparation

Fixed, decalcified, H & E stain

View

Gross specimen

Specimen

Neoplasm of the bone

Image Credit

Parviz Haghighi, M.D.
Department of Pathology
School of Medicine
University of California, San Diego