Research Article
Bronchoscopic Diagnosis and Treatment of Primary Tracheobronchial Amyloidosis: A Retrospective Analysis from China
Table 3
Bronchoscopic and histopathological examinations.
| Feature | | % |
| Bronchoscopy () | | | Multiple intraluminal nodules, masses | 64/107 | 59.9 | Luminal stenosis, occlusion | 54/107 | 50.5 | Bronchial wall thickening | 30/107 | 28.0 | Brittle and easily bleeding mucosa | 26/107 | 24.3 | Mucosal unevenness | 23/107 | 21.5 | Mucosal hyperemia and edema | 22/107 | 20.6 | Mucosal paleness | 1/107 | 0.9 | Wall rigidity | 1/107 | 0.9 | Histopathology () | | | Submucosal amyloid deposition | 109/109 | 100.0 | Brick red amyloid by Congo red staining | 50/109 | 45.9 | Yellow-green birefringence of amyloid by polarizing microscopy | 22/109 | 20.2 |
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