Abstract
Quoting from James E wing,1 first paragraph: A review of the literature on juvenile cancer reveals conflicting views regarding the incidence, course, and general significance of this group of diseases, and these conflicts are clearly referable to the difference in the age periods included in the material considered by the authors. The writers who included under juvenile cancer all cases occurring in the first three decades failed to be impressed by any special characters of cancer in these periods and were inclined to dismiss the subject as of no special interest. On the other hand, the authors who considered especially the tumors occurring in the earlier age periods and particularly those occurring in infancy and the first decade were uniformly impressed with many peculiarities of cancer in childhood. There is a marked increase in the incidence of cancer in the third decade, and, when all these cases are included, the