Dural venous sinus thrombosis in acute lymphoblastic leukemia

Area of Science:

• Pediatric Oncology
• Neurology
• Hematology

Background:

• Acute lymphoblastic leukemia (ALL) is a common childhood cancer.
• Central nervous system (CNS) involvement in leukemia can present with various symptoms.
• Sagittal sinus thrombosis is a rare but serious complication.

Observation:

• Three pediatric patients with acute lymphoblastic leukemia developed sagittal sinus thrombosis.
• One patient achieved peripheral remission at the time of thrombosis.
• Leukemic cell infiltration of dural sinuses was not observed in non-surviving patients.

Findings:

• Sagittal sinus thrombosis can manifest during both active leukemia and remission phases.
• Angiography is the preferred diagnostic tool for identifying sinus thrombosis and associated hemorrhages (intracerebral, subdural).
• The study suggests a potential link between chemotherapy and the development of sinus thrombosis.

Implications:

• Highlights sagittal sinus thrombosis as a critical, potentially treatable cause of CNS symptoms in childhood leukemia.
• Emphasizes the importance of considering sinus thrombosis in the differential diagnosis of neurological symptoms in leukemia patients.
• Suggests further investigation into the role of chemotherapy in predisposing patients to this complication.