SEER is an authoritative source of information on cancer incidence and survival in the United States. SEER currently collects and publishes cancer incidence and survival data from population-based cancer registries covering approximately 28 percent of the U.S. population.
A neoplasm of lymphoblasts committed to the B lineage with a translocation between the TEL (ETV6) gene on chromosome 12 with the AML1(RUNX1) gene on chromosome 12.
(This code is effective for cases diagnosed 2010 and later. For cases diagnosed prior to 2010 see codes: 9728/3 [lymphomas] or 9836/3 [leukemia].) This leukemia is relatively common in children. The incidence decreases with age, so it is seldom seen in older children and rarely, if never, in adults. Presenting symptoms are similar to patients with acute lymphoblastic leukemia, NOS.