File:Osteosarcoma.jpg

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Description
English: Micrograph of an osteosarcoma, a malignant primary bone tumour. H&E stain.

Osteosarcomas, by definition, form osteoid (the organic extracellular component of bone) which is pink, bland/homogenous on H&E staining.

Features of osteosarcoma seen in image:

  • High density of spindle cells with malignant features (e.g. nuclear membrane irregularies, marked nuclear size differences, mitoses) surrounded by delicate strands of osteoid.
  • Large (multinucleated) osteoclast-like giant cells (seen occasionally in osteosarcomas).
Source Own work
Author Nephron

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current01:30, 9 July 2009Thumbnail for version as of 01:30, 9 July 20092,136 × 1,424 (1.11 MB)Nephron (talk | contribs){{Information |Description={{en|1=Micrograph of an '''osteosarcoma''', a malignant primary bone tumour. H&E stain. Osteosarcomas, by definition, form osteoid (the [[w:organic

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