Figure 3From: Generation of orthotopic patient-derived xenografts from gastrointestinal stromal tumor Natural history of xenograft tumor progression based upon serial ultrasound imaging. Based upon maximum tumor size achieved, tumors were sorted into two groups with distinct tumor growth patterns. A. Tumors with a maximum tumor size ≥ 50 mm3 (N = 11). B. Tumors with a maximum tumor size < 50 mm3 (N = 10).Back to article page