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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, parosteal - Knee - MRI
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Osteogenic sarcoma, parosteal - Knee - MRI
  • Case ID: 111
  • Classic Case: true
  • Diagnosis: Osteogenic sarcoma, parosteal
  • Category: Bone Tumors
  • Category Type: Osteoid-forming
  • Category Sub Type: Malignant
  • Location: Knee
  • Age: 32
  • Sex: M
  • Treatment: Resection
  • Image ID: 1402
  • Image Type: MRI
  • Images relating to this case: 1398 , 1399 , 1400 , 1401 , 1402, 1403 , 1404 , 1405 , 1406 .

Sagittal STIR MRI shows the high signal characteristics of the parosteal sarcoma on the posterior aspect of the distal femur with several areas of signal void where dense ossification is occurring. Note that the low signal features of the bone marrow show no evidence of reaction to the surface tumor.


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