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Osteosarcoma : Lace-like Osteoid

slide 35 of 91

Comments:
Lace-like osteoid deposited in between frankly anaplastic tumor cells. The patient was a 13 y/o boy who presented with history of pain around his right knee joint. Plain films and MRI scans showed a lesion in upper tibia that was diagnostic of osteosarcoma. Final diagnosis was Grade 4 osteoblastic osteosarcoma.

slide 35 of 91