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: Radiology
Bulging fissures in lungs is seen in – 
Select and explain. 
A. Klebsiella pneumonia, B. Staph pneumonia, C. Pulmonary oedema, D. Pneumoconiosis
A: Klebsiella pneumonia
Answer: A: Klebsiella pneumonia 
Explanation: The most important cause of bulging fissure is klebsiella pneumonia. Other causes are legionella pneumonia, streptococcal pneumonia, TB, Yersinia pestis, lung abscess, carcinoma bronchus