Primary gastrointestinal tract lymphoma in childhood.
D000293:Adolescent; D001063:Appendiceal Neoplasms; D002648:Child; D002675:Child, Preschool; D003110:Colonic Neoplasms; D004379:Duodenal Neoplasms; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000532:radiotherapy / Q000601:surgery; D006801:Humans; D007082:Ileum; D007414:Intestinal Neoplasms; D007583:Jejunum; D008223:Lymphoma; D008297:Male; D013274:Stomach Neoplasms