Axial (A) and coronal (B) MR images show large soft-tissue mass in thigh with mixed-signal intensity that proved to be malignant fibrous histiocytoma. C, Intraoperative photograph shows tumor being resected with wide margins. Biopsy track is kept in continuity with tumor. D, Tumor bed after resection. E, Photograph of resected specimen. Plane of dissection is through normal muscle.