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: Pathology
Clubbing is commonly seen in all of the following except: March 2010 
Select and explain. 
A. Mesothelioma, B. Tropical eosinophilia, C. Bronchiectasis, D. Fibrosing alveolitis
B: Tropical eosinophilia
Answer: B: Tropical eosinophilia 
Explanation: Ans. B: Tropical eosinophiliaABCDEF for Lung-related causes of clubbing: Abcess (lung)Bronchiectasis (including CF)Cancer (lung)Decreased oxygen (hypoxia)EmpyaemaFibrosing alveolitis