Cerebral aspergillus infection in pediatric acute lymphoblastic leukemia induction therapy

Gaurav Prakash1, Sanjay Thulkar, Sudheer Kumar Arava

  • 1Department of Medical Oncology, Dr. B. R. A. Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, New Delhi, India.

Insights

Angioinvasive pulmonary aspergillosis, a fungal infection, can spread to the brain in acute lymphoblastic leukemia (ALL) patients. Poor blood-brain barrier penetration of amphotericin B may limit treatment effectiveness for disseminated fungal infections.

Area of Science:

  • Mycology
  • Hematology
  • Infectious Diseases

Background:

  • Filamentous fungi can cause angioinvasive pulmonary infections, particularly in immunocompromised individuals such as those with acute lymphoblastic leukemia (ALL).
  • Hematogenous spread of these fungal infections to multiple visceral organs is a rare but serious complication.

Observation:

  • A case is presented of a 14-year-old boy with ALL who developed angioinvasive pulmonary aspergillosis during induction therapy.
  • The infection subsequently disseminated hematogenously, leading to the formation of multiple brain abscesses.

Findings:

  • Despite treatment with intravenous amphotericin B, the patient showed no response and succumbed to the disseminated infection.
  • Postmortem lung biopsy confirmed angioinvasive pulmonary aspergillosis.

Implications:

  • Poor penetration of amphotericin B across the blood-brain barrier is a potential factor contributing to treatment failure in disseminated central nervous system fungal infections.
  • Further discussion is warranted regarding antifungal agents and their efficacy in penetrating the brain for treating such severe cases.