Figure 2From: New clinical application of high-intensity focused ultrasound: local control of synovial sarcomaH & E staining of samples obtained by needle aspiration. (A) Before HIFU treatment, the sample contained a large number of synovial sarcoma cells and infiltration of the muscle layer. Magnification, ×200. (B) After treatment, tumor cells were not found, the sample only contained lymphocytes. Magnification, ×100.Back to article page