Figure 2
From: Study of nasal mucosa histopathological changes in patients with hypersensitivity pneumonitis
HRCT chest of a 45-year-old female patient, with a history of raising birds, presented with gradual progressive dyspnea and dry cough for 1 year. (A) HRCT shows a pattern of non-fibrotic HP in the form of diffuse bilateral centrilobular nodules (yellow circle) and air trapping (red square). (B) Nasal biopsy showed dense lymphocytic infiltration. H&E stain, original magnification × 200. CT chest of a 50 years old female patient presented with dyspnea and dry cough for 5 years. (C) HRCT shows a pattern of fibrotic HP in the form of bilateral mosaicism, areas of bronchiectasis, and reticulations. (D) Nasal biopsy showed dense lymphocytic infiltration. H&E stain, original magnification × 200.
