[A case of multiple liver metastases from colon cancer successfully treated with modified pharmacokinetic modulating chemotherapy using Leucovorin].

A 51-year-old man underwent right hemicolectomy due to ascending colon cancer with multiple liver metastases. Administration of modified pharmacokinetic modulating chemotherapy (PMC) using Leucovorin (intravenous infusion of 5-FU, 600 mg/m2/24 hours; oral administration of UFT, Taiho Pharmaceutical Co., Tokyo, Japan, 400 mg/day; and Isovorin, Wyeth Lederle Co., Tokyo Japan, 250 mg/body) was started postoperatively. Two months of modified PMC produced a drastic tumor reduction without any adverse reactions such as diarrhea or myelosuppression observed. At present the patient continues to tolerate the chemotherapy and is being followed as an outpatient clinic. This case suggests the usefulness of modified PMC using Leucovorin for progressive recurrent colon cancer.