Chronic myeloid leukemia as a secondary malignancy after lymphoma in a child. A case report and review of the literature.

Background: Philadelphia chromosome-positive chronic myeloid leukemia (CML) in children is very rare. CML occurring as a secondary malignancy in individuals treated for diffuse large B-cell lymphoma (DLBCL) is also rare.

Case Report: We present the case of a 5-year-old female patient who developed a right orbital mass that was diagnosed as DLBCL.