Task: Answer Verification
Input (English): Question: Does the prognosis of pulmonary metastasectomy depend on the location of the primary colorectal cancer?
Answer: Disease-free survival and site of recurrence after pulmonary metastasectomy for colorectal carcinoma are dependent on the site of the primary tumor. Lung metastases from rectal cancer have a worse disease-free survival compared with colon cancer. This may influence treatment and follow-up strategies.
Output (English): yes