This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Breast cancer mainly spreads to the veebrae 
Select and explain. 
A. Aerial route, B. Direct Invasion, C. Batsons venous plexus, D. Via Axillary lymph nodes
C: Batsons venous plexus
Answer: C: Batsons venous plexus 
Explanation: Answer- C. Batsons venous plexusMetastasis of breast cancer to bone, and especially to thoracic veebrae, is common due to the direct connection between the intercostal veins draining the breast and the internal veebral plexus ako known as Batson's plexus.