Imaging findings of primary pulmonary synovial sarcoma with secondary distant metastases: A case report

Figure 3 Chest wall metastasis. A and B: The chest wall mass showed a hypoechoic mass in the superficial fascia layer on two-dimensional ultrasonography. Color Doppler flow imaging: Dot strip blood flow signal was seen in the mass; C: Pathological image of chest wall metastatic synovial sarcoma (hematoxylin and eosin staining, × 400); D-F: The ultrasound contrast agent quickly withdrew after rapidly high enhancement, showing the “fast forward and fast retreat” enhancement mode.