Hemangioblastoma-Related Cardiovascular Complications

Pathophysiological Mechanisms

• Hemangioblastomas are highly vascular tumors that can cause arteriovenous shunting, potentially leading to high-output cardiac failure, especially in multifocal or diffuse lesions 1

Diagnostic Approaches

• MRI with contrast is the preferred imaging modality for diagnosing hemangioblastomas 2

Special Considerations in VHL Disease

• VHL patients require comprehensive surveillance including annual blood pressure monitoring starting at age 2 3
• Annual plasma or urine metanephrine levels should be checked to rule out pheochromocytoma, which can cause different cardiovascular manifestations 3
• Brainstem hemangioblastomas occur in 10-25% of VHL patients, with the youngest reported case at age 12 4