All are implicated in aetiology of atrophic rhinitis except:
**Core Concept**
Atrophic rhinitis is a chronic inflammatory condition of the nasal mucosa characterized by atrophy of the turbinate bones and a decrease in the mucous membrane's secretory function. This condition can be caused by a variety of factors, including infections, allergies, and autoimmune disorders.
**Why the Correct Answer is Right**
Atrophic rhinitis is often associated with chronic infections, such as rhinoscleroma, and allergies, such as allergic fungal sinusitis. Additionally, autoimmune disorders, like granulomatosis with polyangiitis, can also contribute to the development of atrophic rhinitis. The correct answer should be a condition that is not typically associated with the aetiology of atrophic rhinitis.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because rhinoscleroma is a chronic infection that can cause atrophic rhinitis. Rhinoscleroma is a granulomatous infection caused by Klebsiella rhinoscleromatis, which leads to the destruction of the nasal mucosa and turbinate bones.
**Option B:** This option is incorrect because allergic fungal sinusitis is a common cause of atrophic rhinitis, particularly in individuals with a history of allergies. Allergic fungal sinusitis is characterized by an overgrowth of fungi in the sinuses, leading to inflammation and destruction of the nasal mucosa.
**Option C:** This option is incorrect because granulomatosis with polyangiitis is an autoimmune disorder that can cause atrophic rhinitis. This condition is characterized by the presence of granulomas in the nasal mucosa and turbinate bones, leading to inflammation and destruction of the nasal tissue.
**Clinical Pearl / High-Yield Fact**
Atrophic rhinitis can be treated with a variety of medications, including topical corticosteroids, antihistamines, and nasal sprays. Additionally, surgical interventions, such as turbinate reduction, may be necessary to alleviate symptoms and improve quality of life.
**Correct Answer: D.**