Abstract
Retroperitoneal fibrosis shown in a patient with advanced gastric cancer was markedly improved by chemotherapy (5'-DFUR+MMC). In addition, fibrosis that appeared when human pancreatic cancer cells and isolated pancreatic acinar cells of normal rats were cultured was reduced by administration of anti-cancer drugs (MMC and 5-FU, respectively). The above results suggest that anti-cancer drugs are useful for the treatment of retroperitoneal fibrosis even at low doses.