A patient presents with chronic nasal congestion, hyposmia, and anosmia. Nasal endoscopy reveals polypoid masses obstructing the nasal cavity and sinuses. Which of the following conditions is most likely responsible for this presentation?
Correct Answer: C
Rationale: The correct answer is C: Nasal polyps. Nasal polyps are benign growths that form in the nasal cavity and sinuses, leading to symptoms such as chronic nasal congestion, hyposmia, and anosmia. The presence of polypoid masses seen on nasal endoscopy is characteristic of nasal polyps.
Rationale:
1. Chronic nasal congestion, hyposmia, and anosmia are common symptoms of nasal polyps.
2. Nasal endoscopy revealing polypoid masses confirms the presence of nasal polyps.
3. Allergic rhinitis may cause nasal congestion but does not typically present with polypoid masses.
4. Chronic sinusitis can cause nasal congestion but is usually associated with inflammation of the sinuses, not just polypoid masses.
5. A deviated nasal septum can lead to nasal congestion but does not typically cause polypoid masses obstructing the nasal cavity and sinuses.