Study of Nasal Mucosa Histopathological Changes in Chronic Hypersensitivity Pneumonitis

Study of Nasal Mucosa Histopathological Changes in Patients With Chronic Hypersensitivity Pneumonitis

Background:Hypersensitivity pneumonitis (HP) is an interstitial lung disease that develops after inhalation of organic or inorganic antigens in susceptible individuals. The nasal mucosa is constantly exposed to these antigens that can irritate the respiratory mucosa.

Objectives: to assess the burden of sinonasal symptoms in HP patients and to evaluate the nasal histopathology in those patients.

Inclusion Criteria:

• all patients with clinical and radiological features of HP

Exclusion Criteria:

• respiratory failure
• patients on anticoagulants