He complains of reduce sense of smell. What is the SINGLE most likely diagnosis?

A 29 year old man with a medical history that includes late onset asthma attends clinic with rhinorrhoea and bilateral painless nasal obstruction. He complains of reduce sense of smell. What is the SINGLE most likely diagnosis?

A. Septal abscess
B. Septal haematoma
C. Nasal polyp
D. Atrophic rhinitis
E. Allergic rhinitis

Nasal polyps • Lesions arising from the nasal mucosa, occurring at any site in the nasal cavity or paranasal sinuses Note that nasal polyps tend to be bilateral • Associations • Asthma • Aspirin sensitivity

It is particularly important to remember the association with asthma. Note: The association of asthma, aspirin sensitivity and nasal polyps is known as Samter’s triad. Presentation • Nasal obstruction • Rhinorrhoea • Anosmia (loss of smell)