Review
Copyright ©The Author(s) 2018.
World J Gastrointest Oncol. Oct 15, 2018; 10(10): 293-316
Published online Oct 15, 2018. doi: 10.4251/wjgo.v10.i10.293
Table 1 Diagnostic evaluation of synchronous colorectal cancer
Local tumour staging Preoperative colonoscopy with histological assessment of all colorectal lesions CT of the abdomen and pelvis
In case of rectal cancer include Endorectal ultrasound Pelvic magnetic resonance imaging
If preoperative evaluation during colonoscopy is incomplete (bowel obstruction, poor bowel preparation, technical reasons, etc.) Double-contrast barium enema CT colonography, if available MRI colonography, if available PET–CT colonography, if available
Intraoperative assessment Intraoperative colonoscopy Palpation of the entire colon Thorough examination of pathological specimens
Evaluation of metastatic disease CT of the chest, abdomen, and pelvis MRI of the chest, abdomen, and pelvis, in selected cases 18FDG-PET–CT, in selected cases
Patient performance status Thorough evaluation of coexisting morbidities Pulmonary function tests, in selected cases Echocardiography, in selected cases