Fig. 1From: A case report of sigmoid colon cancer with the inferior mesenteric artery directly originating from the superior mesenteric arteryPreoperative imaging findings. a Colonoscopy showed a semi-circumscribed irregular elevated lesion in the sigmoid colon. b 3D-CT angiography showed that the IMA (yellow arrowheads) originated from the SMA (yellow arrow). c On PET-CT, there was no abnormal accumulation in the central lymph nodes around the IMA. d MRI showed findings suggestive of liver metastasis (white arrow)Back to article page