Carbamazepine-induced acute cholangitis.

We report the case of a patient with carbamazepine-induced cholestasis in whom histologic examination showed acute cholangitis. This type of lesion broadens the spectrum of carbamazepine-induced liver injury which also includes granuloma and hepatocellular necrosis. Its association with marked hypereosinophilia suggests that carbamazepine may cause acute cholangitis through an immunoallergic mechanism.