Simultaneous Presentation of B-Acute Lymphoblastic Leukemia and Streptococcus agalactiae Meningitis in a 3-Year-old

Katelyn Purvis1, Lisa Hiskey2, Mahsa Khanlari3

  • 1Department of Oncology, St. Jude Children's Research Hospital.

Insights

A rare case of pediatric acute lymphoblastic leukemia (ALL) simultaneously presented with Group B Streptococcus bacteremia and meningitis. Early chemotherapy and antibiotics led to a favorable response, showing minimal residual disease.

Area of Science:

  • Pediatric Oncology
  • Infectious Diseases
  • Hematology

Background:

  • Infection poses a significant risk for morbidity and mortality in pediatric acute lymphoblastic leukemia (ALL), particularly during induction therapy.
  • Bacterial infections are a leading cause of treatment-related complications in children undergoing ALL treatment.

Observation:

  • This report details a rare instance of a 3-year-old girl with ALL who simultaneously developed Streptococcus agalactiae (Group B Streptococcus) bacteremia and meningitis.
  • The patient presented with a complex clinical picture involving both the malignancy and a severe infection.

Findings:

  • The patient received targeted antimicrobial therapy for the infection.
  • An early induction chemotherapy regimen, including vincristine and dexamethasone, was initiated.
  • Initial response to anti-neoplastic therapy was favorable, with minimal residual disease (MRD) of 1.12% on day 15, despite slow neurologic recovery.

Implications:

  • This case highlights the critical need for prompt diagnosis and management of severe infections in pediatric ALL patients.
  • It underscores the importance of balancing anti-leukemic treatment with aggressive infection control.
  • The findings suggest that early induction chemotherapy can be effective even in the presence of severe bacterial infections, with careful monitoring.