del(5q) in acute lymphoblastic leukemia (ALL)

Abstract

Myelodysplatic syndrome (MDS) with an isolated 5q deletion (5q-syndrome), that may arise de novo or may be therapy-related is recognized as a distinct entity by the WHO classification. While del(5q) thought to contribute to the pathogenesis of myeloid neoplasms, it has also been reported in lymphoblastic leukemia, suggesting a common underlying mechanism.