This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory, Subject name: Medicine
What is the diagnosis in this patient who developed chest pain after coughing? 
Select and explain. 
A. Lung cancer, B. Lung herniation, C. Pneumothorax, D. Pulmonary embolism
B: Lung herniation
Answer: B: Lung herniation 
Explanation: Answer B. Lung herniationA radiograph of the chest showed extension of lung parenchyma beyond the rib cage laterally at the base of the left lung. Computed tomography of the chest revealed lung herniation through a left lower intercostal space laterally, as well as a moderate pleural effusion on the left side. The patient underwent successful surgical repair of the hernia.