ECR 2015 / C-2337
Pre-operative staging CT Thorax in patients with colorectal cancer; its clinical importance?
This poster is published under an
open license. Please read the
disclaimer for further details.
Keywords:
Abdomen, Thorax, Colon, CT, Staging, Cancer, Pathology
Authors:
C. O'Rourke, J. Hogan, N. Kelly, J. C. Coffey; Limerick/IE
DOI:
10.1594/ecr2015/C-2337
Results
383 patients were identified.[Figure 1] The mean age was 66.7±12.2 years.
235 were male (61.4%).
206 (53.8%) colonic and 177 (46.2%) rectal tumours were involved.
Evidence of distant metastatic disease was evident in 71 patients (18.5%) based on staging CT-TAP.
Staging CT-thorax revealed pulmonary metastases in 25 patients (6.5%) and indeterminate lesions in 33 patients (9%).
60% of pulmonary metastases were not evident on pre-operative chest x-ray.
All patients who had evidence of lung metastases had node positive disease (p=0.03).
No other clinical or pathological factor at diagnosis was independently associated with the presence of pulmonary lesions.
Overall survival did not differ between the patients with pulmonary metastases and indeterminate lesions (p=0.35).[Figure 2] 20% of the indeterminate lesions had malignant transformation on follow up.
[Figure 3]