congenital leukemia

congenital leukemia

Pediatric hematology A leukemia that develops in the first month of life, usually acute non-lymphocytic leukemia; CL is often associated with congenital malformations and chromsome defects, especially trisomy 21/Down syndrome, but also trisomy 13, mosaic trisomy 9, monosomy 11, Turner syndrome, etc. See Leukemia.