This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose and paranasal sinuses, Subject name: ENT
Merciful anosmia is seen in 
Select and explain. 
A. Nasal polyp, B. Atrophic rhinitis, C. Rhinosporidiosis, D. Rhinoscleroma
B: Atrophic rhinitis
Answer: B: Atrophic rhinitis 
Explanation: Merciful anosmia is seen in atrophic rhinitis(Ozaena). There is foul smell from the nose, but the patient himself is unaware of smell due to marked anosmia due to degenerative changes Ref: Dhingra 7e pg 173.