[The local treatment of the keratoacanthoma with 5-fluorouracil]

In the last two years thirteen patients with keratoacanthomas were treated with 5% f-fluorouracil ointment at the Department of Dermatology II of the University of Vienna. Treatment lasted from two to eight weeks depending upon the size of the tumor. In all cases there was clearing of lesions with good cosmetic results. During an average follow-up period of 7.4 months for all patients there was no recurrence of the tumors.