Acute non-lymphocytic leukemia is not a major type of childhood leukemia in Japan.
The distribution of acute leukemia according to type was examined in Japanese children by three surveys: (1) a review of bone marrow slides of 81 cases diagnosed as acute myelogenous leukemia between 1964 and 1976; (2) a prospective study of 97 cases observed since 1977, and (3) a study of 8108 cases registered with the Children's Cancer Registry of Japan from 1969 to 1984. The results indicate that the ratio of acute lymphocytic leukemia to non-lymphocytic leukemia in Japan is not different from that in other countries.
Bessho
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Department of Pediatrics, University of Tokyo Hospital, Japan.
D002648:Child; D006801:Humans; D007564:Japan; D015470:Leukemia, Myeloid, Acute / Q000453:epidemiology*; D011446:Prospective Studies; D012189:Retrospective Studies