CNS 3

**Semantic type:** Classification

**Definition:** The status of central nervous system leukemia at diagnosis, where there are more than 5 white blood cells per microliter on a cerebral spinal fluid cytospin preparation that is positive for blasts; with or without clinical signs of CNS leukemia.

**Synonyms:** - CNS3 - CNS3 - CNS3 - CNS3 - Central Nervous System Status 3