Fig. 1From: Neoadjuvant imatinib treatment and laparoscopic anus-preserving surgery for a large gastrointestinal stromal tumor of the rectumSagittal view of pelvic MRI. a Before imatinib treatment, an 80-mm tumor was observed on the anterior wall of the lower rectum. b After 6 months treatment with imatinib, the tumor decreased to 37 mmBack to article page