Cryosurgery and OK 432 in the treatment of malignant melanoma.

We used concomitant therapy that consisted of cryosurgery and injection of OK 432 (a hemolytic streptococcal preparation) in the treatment of a giant malignant melanoma that primarily arose from the hard palate to the alveolar process in a 69-year-old man. The tumor consequently disappeared completely. One and a half years later, there are no signs of relapse.