[Three cases of resected pulmonary metastasis from colorectal cancer after preoperative chemotherapy].

We describe three cases of resected pulmonary metastasis from postoperative colorectal cancer after preoperative 5-fluorouracil, Leucovorin, oxaliplatin (FOLFOX) chemotherapy. The first case is a 38-year-old man who underwent low anterior resection for rectal cancer in 2003. Subsequently, left lung metastasis occurred in February 2009. FOLFOX chemotherapy was administered, resulting in a partial response (PR) of tumor size. Post-chemotherapy, segmental resection of he S1+2 segments of the left lung was performed in May 2009. A pathological diagnosis of Grade 1b was made. The patient remained recurrence-free 5 years post-surgery. The second case is a 68-year-old man who underwent left half colon resection for descending colon cancer with left lung metastasis in March 2006. FOLFOX chemotherapy was administered, with a PR of lung metastasis size. Post-chemotherapy, a segmental resection of the S4 segment of the left lung was performed in September 2006. A pathological diagnosis of Grade 1b was made. The patient was alive 8 years post-surgery. The third case is a 64-year-old man who underwent low anterior resection for rectal cancer in November 2007. A year later, bilateral lung metastases were detected. FOLFOX+bevacizumab was administered, with a stable disease effect on tumor size. Post-chemotherapy, partial resection of both lungs was performed in March and April 2010. A pathological diagnosis of Grade 1a was made. The patient was recurrence-free at the 4-year follow up. We believe that preoperative FOLFOX chemotherapy may be effective in treating lung metastasis from colon cancer.