Neonatal Acute Lymphoblastic Leukemia.

Acute lymphoblastic leukemia (ALL) in a neonate can have a similar clinical appearance to other serious pathology and should be considered in the ill-appearing infant. We present the case of a 24-hour-old male infant born to a mother with limited prenatal care who was brought to the pediatric emergency department with a rash and decreased movement. His initial white blood cell count was 822 × 10 cells/L. Cytogenetics showed a complex t (9;19;11) translocation, indicating a diagnosis of neonatal ALL. Given the morbidity and mortality rate among infants with neonatal ALL, his parents elected not to pursue cancer-directed therapy in favor of symptomatic care.