[A case of advanced rectal carcinoma with multiple lung metastases responding to irinotecan combined with 5-fluorouracil and l-leucovorin (IFL) as neoadjuvant chemotherapy (NAC)].

: A 53-year-old man, admitted for inguinal hernia, complained of body weight loss in a preoperative condition check. We examined the digestive tract and diagnosed stage IV advanced rectal carcinoma with multiple lung metastases. It caused ileus, so emergency colostomy was performed. After that his general condition recovered, and two cycles of neoadjuvant chemotherapy (NAC) by irinotecan combined with 5-fluorouracil and l-leucovorin (IFL) therapy were performed on an outpatient basis. Lung metastatic nodules disappeared. We established a diagnosis of down staging for stage IIIa, and performed a lower anterior resection with D 2 lymph node dissection to allow a curability-A resection. The pathological effect of NAC was Grade 2. Post-operatively, two cycles of IFL therapy were then performed. There has been no sign of recurrence, and no adverse effects by chemotherapy have been seen during this treatment. Thus, NAC by IFL therapy can be one of the useful treatment approaches for patients with advanced rectal cancer.