Primary Central Nervous System Leukemia Presenting as Altered Mental Status.
BACKGROUND
Altered mental status is a common cause for presentation to the emergency department with a broad differential diagnosis.


CASE REPORT
We present a unique case of altered mental status in a previously healthy man that was found to be secondary to primary central nervous system acute lymphoblastic leukemia. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Lumbar puncture remains a critical tool for emergency physicians in the diagnosis of central nervous system pathologies.
['Monsef|Brenna|B|', 'Carpp|Nicole|N|']
altered mental status acute lymphoblastic leukemia lumbar puncture central nervous system malignancy