Abstract: Objective To analysis the etiology of intracranial and extracranial arteriovenous system impairment after pulmonary cancer.Methods A patient with pulmonary cancer with deep venous thrombosis, jugular venous thrombosis and cerebral infarction was analysed and reviewed combined with the literature. Results Pulmonary cancer could impair intracranial and extracranial arteriovenous system by hypercoagulability,anticoagulation system abnormalities and vascular wall damage, which could be manifested as cerebral infarction and deep venous thrombosis. Conclusion The hypercoagulable state secondary to pulmonary cancer is one of the main causes of intracranial and extracranial arteriovenous system thrombosis.

Key words: pulmonary cancer, cerebral arteries, venous thrombosis, pathogenesis