[A disorder involving the aberrant infiltration and aggregation of leukocytes into the vasculature of the body. Leukostasis is typically detected in the brain and lungs of persons with leukemia. It requires substantial ablative modalities to both reduce the number of cells present and to ensure dispersion of the aggregates. ( NCI )]
UMLS (NCI) C0282548 Relation/PAR: Diseases of white blood cells