 [ Symptoms ] i have colon cancer stage 3b i have abdomen pain mri of omentum and lesions of concern [ Disease ] omentum is normaly thickened in grade 3b colon cancer it indicates spread to lymphnodes it is usually associated with abdominal pain due to lack of normal bowel movement from omental thickening sorry i can not answer the liver lesions part without seeing the mricea is expected to be high in colon cancer grade 3b even after colonectomygood luck