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: Pathology
Which of the following is not included in Virchow's triad of thrombus formation? 
Select and explain. 
A. Endothelial injury, B. Stasis or turbulent blood flow, C. Hypercoagulability of the blood, D. Increased vascular permeability
D: Increased vascular permeability
Answer: D: Increased vascular permeability 
Explanation: The three primary abnormalities that lead to thrombus formation (called Virchow's triad) are (1) endothelial injury, (2) stasis or turbulent blood flow, and (3) hypercoagulability of the blood. Ref: Robbins 8th edition Chapter 4.