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Click 63 year old male with extraskeletal osteosarcoma. Axial T1 weighted images demonstrate a 7 x 8 x 7.5 cm enlarged well circumscribed soft tissue mass that does not involve the femur, but contains hemorrhage. Siemens Symphony 1.5 Tesla MRI, TR: 1140 msec, TE: 12 msec.

Click 63 year old male with extraskeletal osteosarcoma. Axial fat saturated FSE T2 weighted images demonstrate a 7 x 8 x 7.5 cm enlarged well circumscribed soft tissue mass that does not involve the femur, but contains hemorrhage. Siemens Symphony 1.5 Tesla MRI, TR: 3500 msec, TE: 60 msec.

Click 63-year-old male with extraskeletal osteosarcoma. Siemens Symphony 1.5 Tesla MRI after administration of 19 cc of IV Omniscan gadolinium: Axial fat saturated T1 (TR: 530 msec, TE: 12 msec) weighted images demonstrate a 7 x 8 x 7.5 cm well circumscribed soft tissue mass that does not involve the femur, and has enhancing solid components.

Click 63-year-old male with extraskeletal osteosarcoma. Siemens Symphony 1.5 Tesla MRI: Sagittal T1 (TR: 1140 msec, TE: 12 msec) weighted images demonstrate a 7 x 8 x 7.5 cm well circumscribed soft tissue mass that does not involve the femur, but contains hemorrhagic components.

Click 63-year-old male with extraskeletal osteosarcoma. Siemens Symphony 1.5 Tesla MRI: Sagittal fat saturated FSE T2 (TR: 3500 msec, TE: 60 msec) weighted images demonstrate a 7 x 8 x 7.5 cm well circumscribed soft tissue mass that does not involve the femur, but contains hemorrhagic components.