A case of allergic liver injury induced by tegafur.

A 51-year-old woman constitutionally susceptible to allergy presented with acute allergic liver injury. She was taking tegafur for treatment of carcinoma of the uterus. The acute liver injury appeared 3 weeks after the first drug administration. She had marked elevation of glutamic oxaloacetic transaminase (GOT) and glutamic pyruvic transaminase (GPT), moderate jaundice, and eosinophilia. The virus markers revealed hepatitis B surface antigen (HBsAg) (-) antibody to hepatitis B surface antigen (HBsAb) (+), and immunoglobulin M HA antibody (IgM HA Ab) (-). The laparoscopic and histologic findings were compatible with drug-induced liver injury. Further, the results of the lymphocyte stimulation test (LST) and challenge test by tegafur were positive. From the above findings, the liver injury was diagnosed to be an allergic reaction induced by tegafur. The hepatic function returned to normal about 20 days after tegafur administration was suspended. Allergic liver injury induced by tegafur is very rare. We report the case with a short review of the literature.