Renal adenocarcinoma in young adults.

Survival following the diagnosis of renal adenocarcinoma in a group of young adults, twenty to forty years of age, was distinctly better than that found in adults over age forty. This disparity could not be accounted for by a larger proportion of younger patients with early stage disease, nor by a greater percentage of non-cancer deaths in the older group. Perhaps a more favorable host-tumor immunologic balance is present in younger individuals.