External-beam radiation therapy in the treatment of diffuse tracheobronchial amyloidosis.
case_report · Level V
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Abstract
Tracheobronchial amyloidosis is characterized by deposits of amyloid in airway walls. No effective treatment is known. We describe a 59-year-old woman who presented with increasing symptoms of airway obstruction due to diffuse deposition of amyloid throughout her tracheobronchial tree. She was treated with external-beam radiation therapy (20 Gy) with marked improvement in her symptoms, effort tolerance, bronchoscopic appearance, and forced expiratory volume in 1 second (1.39 L to 1.97 L [42%]). This improvement was maintained during 21 months of follow-up.
Medical subject headings
- Amyloidosis
- Bronchial Diseases
- Tracheal Diseases