RT Journal A1 Lisker-Melman M, Hoofnagle JH T1 PHenytoin hepatotoxicity masked by corticosteroids JF Archives of Internal Medicine JO Archives of Internal Medicine YR 1989 FD May 1 VO 149 IS 5 SP 1196 OP 1197 DO 10.1001/archinte.1989.00390050148032 UL http://dx.doi.org/10.1001/archinte.1989.00390050148032 AB • The association of phenytoin and liver toxicity is well documented. This article describes a patient who underwent a trans sphenoidal resection of a pituitary tumor who developed phenytoin-induced hepatotoxicity that was masked by the simultaneous administration of corticosteroids for treatment of cerebral edema. In a patient receiving both medications, the systemic manifestations of the hypersensitivity to phenytoin may go unrecognized, leading to delayed identification of a potentially lethal complication of this commonly prescribed anticonvulsant.(Arch Intern Med. 1989;149:1196-1197)