NCIt definition : An uncommon type of lymphoma. It constitutes approximately 10% of cases of lymphoblastic
lymphoma. Approximately 75% of cases reported in a literature review involved patients
who were less than 18 years of age. The most commonly affected sites are the skin,
bone, soft tissue, and lymph nodes. It has a high remission rate with a median survival
of approximately 60 months. (WHO, 2001);