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
Muscle not cut in posterolateral thoracotomy is -a) Serratus anteriorb) Latissimus dorsic) Rhomboides majord) Pectoralis major 
Select and explain. 
A. cd, B. bc, C. bd, D. ac
A: cd
Answer: A: cd 
Explanation: • Posterolateral thoracotomy is the most frequently used operation to access the thorax.
• Incision is made through 5th intercostal space.