[The leukemia-lymphoma syndrome with gastrointestinal involvement in childhood. A case report].

: The gastrointestinal tract is an uncommon site of presentation for acute lymphoblastic leukemia in children. We report a child who developed a leukemia-lymphoma syndrome with central nervous system and gastrointestinal tract involvement at the diagnosis. The patient received an intensive combination chemotherapy and is currently off-therapy in continuous complete remission 29 months after the diagnosis.