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Juxta-articular chondroma Kaposi's Sarcoma Large cell lymphoma, Leimyosarcoma, Leiomyosarcoma, Letterer-Siwe disease, Leukemia, Low-grade intramedullary osteogenic sarcoma, Lumbosacral lipoma, Lymphangioma, Lymphangiomatosis, Lymphoma, Lymphoma pseudotumor (Actual: radiation osteitis), Lymphoma pseudotumor (Actual: stress fracture), Lymphoma with secondary osteogenic sarcoma Maffucci's Syndrome, Maligant fibrous histiocytoma pseudotumor (Actual: Hematoma), Malignant fibrous histiocytoma (MFH).
Osteogenic sarcoma, low-grade intramedullary - Distal femur - Photomicrograph
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Osteogenic sarcoma, low-grade intramedullary - Distal femur - Photomicrograph
  • Case ID: 114
  • Classic Case: true
  • Diagnosis: Osteogenic sarcoma, low-grade intramedullary
  • Category: Bone Tumors
  • Category Type: Osteoid-forming
  • Category Sub Type: Malignant
  • Location: Distal femur
  • Age: 63
  • Sex: F
  • Treatment: Total knee arthroplasty
  • Image ID: 1421
  • Image Type: Photomicrograph
  • Images relating to this case: 955 , 1417 , 1418 , 1419 , 1420 , 1421, 1422 .

Low power photomicrograph of the specimen shows definite evidence of infiltrative osteoid-forming neoplasm flowing through the trabecular pattern of the metaphyseal bone suggesting malignancy. There is young osteoid formation that is poorly mineralized with osteoblasts that suggest low-grade sarcoma.


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