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: ENT
Fowl smelling nasal discharge is seen in all except? 
Select and explain. 
A. Nasal Myiasis, B. Choanal atresia, C. Foreign body in nose, D. Rhinolith
B: Choanal atresia
Answer: B: Choanal atresia 
Explanation: Ans. is `b' i.e., Choanal atresia Diseases with fowl smelling nasal discharge are: Nasal myiasis Foreign body in nose Rhinolith In choanal atresia there is presence of nasal discharge without air bubbles.