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CASE 76: Undifferentiated pleomorphic sarcoma located in the knee
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A patient who presented to an external center with swelling in the knee area was diagnosed with soft tissue sarcoma. The patient underwent tumor removal following radiotherapy. The pathology report showed positive surgical margins, but the patient presented to us with residual mass and wound infection. The patient underwent extensive resection of the tumor along with the surrounding bone, placement of antibiotic cement in the resulting cavity, and closure of the wound with a free flap.
Preoperative: MRI shows an irregularly bordered, heterogeneous mass with surrounding edema, located on the medial side of the left distal thigh and overlying the femur, with a skin defect on top.
During the operation: The image shows the clinical and fluoroscopy view of the tumor tissue removed along with the skin and knee joint.
During the operation: The image shows the cavity created after the tumor was removed and the antibiotic-soaked cement that was applied.
During the operation: Clinical image of the harvested free tensor fascia lata flap and its application.
