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
[{'content': 'Muscle not cut in posterolateral thoracotomy is ? \nSelect and explain. \nA. Serratus anterior, B. Latissimus dorsi, C. Rhomboides major, D. All', 'role': 'user'}, {'content': "Answer: C \nExplanation: Answer is 'c' i.e. Rhomboides major Postero-lateral thoractomy is the most frequently used operation to access the thorax. Usually the incision is made through the 5th ICS. The following muscles may be cut a) Latissimus dorsi b) Serratus anterior c) Trapezius d) Intercostal muscles", 'role': 'assistant'}]