Studies, in Kenya, of the malignant lymphomas of the jaw that are common tumors of young children in equatorial Africa have shown certain relationships to leukemia. It is suggested that the African disease may be a modified form of lymphoblastic leukemia rather than a disease sui generis.
Dalldorf G. Lymphomas of African Children: With Different Forms or Environmental Influences. JAMA. 1962;181(12):1026–1028. doi:10.1001/jama.1962.03050380004002
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