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
A lady presented in the emergency department with a stab injury to the left side of the abdomen. She -was hemodynamically stable and a contrast enhanced. CT scan revealed a laceration in spleen. Laparoscopy was planned. The patient's pO2 suddenly dropped as soon as the pneumoperitoneum was created. What is the most likely cause: 
Select and explain. 
A. Inferior venacava compression, B. Injury to the left lobe of the diaphragm, C. Injury to the colon, D. Gaseous embolism through splenic vessels
D: Gaseous embolism through splenic vessels
Answer: D: Gaseous embolism through splenic vessels 
Explanation: None