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L-asparaginase induced intracranial haemorrhage in acute lymphoblastic leukemia

H L Lim1, C P Teo, K Wong

  • 1Department of Medicine, National University Hospital, Singapore.

Insights

A young man with acute lymphoblastic leukaemia experienced a brain hemorrhage after chemotherapy. This rare complication was likely caused by L-asparaginase, a chemotherapy drug, due to low fibrinogen levels.

Area of Science:

  • Hematology
  • Oncology
  • Neuroscience

Background:

  • Acute lymphoblastic leukemia (ALL) is a cancer of the blood and bone marrow.
  • Chemotherapy, including L-asparaginase, is a standard treatment for ALL.
  • Intracranial hemorrhage is a serious but rare complication of cancer treatment.

Observation:

  • A 20-year-old serviceman with ALL developed a significant left parieto-occipital hemorrhage.
  • The hemorrhage occurred 7 days post-induction chemotherapy.
  • Severe hypofibrinogenemia was observed during L-asparaginase treatment.

Findings:

  • The intracranial hemorrhage was not linked to thrombocytopenia, DIC, AVM, aneurysm, or leukemic infiltration.
  • Hypofibrinogenemia, a condition of low fibrinogen, was present during L-asparaginase therapy.
  • The clinical presentation strongly suggests L-asparaginase-induced intracranial hemorrhage.

Implications:

  • L-asparaginase therapy can lead to uncommon but severe bleeding complications.
  • Monitoring fibrinogen levels during L-asparaginase treatment is crucial.
  • This case highlights the importance of considering drug toxicity in unexplained hemorrhages during leukemia treatment.

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