Abstract
Intracranial hemorrhage (ICH) can be a devastating medical event with numerous potential etiologies. In young people under age 40, ruptured vascular malformation is the most common cause of ICH. Without critical review of imaging and laboratory findings and clinical suspicion beyond vascular malformation, alternative etiologies of hemorrhage may be overlooked in the younger age group. Here we present a case of a 22-year-old male presenting with large ICH originally thought secondary to ruptured vascular malformation. After careful review of all imaging and laboratory findings, the patient was found to have hemorrhage secondary to acute promyelocytic leukemia (APL). Though ICH proved fatal in this case, early treatment of acute leukemia with appropriate chemotherapeutic agents and correction of coagulopathy could be life saving for patients with less severe intracranial injury.