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Background: Tracheal papillomatosis is a relatively rare condition with limited data on successful treatment modalities. To our knowledge, this is the first report to describe a papilloma arising from an accessory bronchus. Furthermore, this case report demonstrates successful treatment with clinical and patient-centered improvements after use of Spray Cryotherapy., Case Presentation: A 71-year-old woman presented with one year history of recurrent fevers and intermittent hemoptysis. Imaging and video bronchoscopy revealed an obstructing papilloma of an accessory tracheal bronchus to the right upper lobe. She was treated with debridement followed by multiple cryotherapy treatments resulting in complete clinical and radiographic resolution of her post-obstructive pneumonia., Conclusions: This case report not only supports existing literature on the use of cryotherapy for airway diseases but also presents a unique form of obstructing papilloma confined to an accessory bronchus, the only report of its kind based on extensive literature review., (© 2022. The Author(s).)

Tracheal bronchus, also known as bronchus suis , is a rare congenital anomaly of the airway where an accessory bronchus originates directly from the trachea. With an estimated incidence of 0.001%-2.0%, this condition is rarely reported in literature. It is usually discovered as an incidental finding in an otherwise asymptomatic individual. However, it can act as a focus of recurrent infection or present as persistent radiographic infiltrates. Multidetector CT imaging and bronchoscopy play a crucial role in the identification of this entity. We hereby report the case of a middle-aged man who presented with recurrent right upper lobe pneumonia, which was found to be due to an underlying tracheal bronchus., Competing Interests: Competing interests: None declared., (© BMJ Publishing Group Limited 2022. No commercial re-use. See rights and permissions. Published by BMJ.)

A 36-year-old woman presented with left chest pain and frequent symptoms of upper respiratory infection. Chest roentgenograms revealed a left pneumothorax and apical bulla, and hyperlucency in the left pulmonary field. She was diagnosed with congenital bronchial atresia associated with a left spontaneous pneumothorax. A thoracoscopy-assisted left superior segmentectomy was performed. There was no recurrence of the pneumothorax or symptoms of recurrent upper respiratory infection at the 1-year follow-up examination. Bulla formation was believed to have resulted from emphysematous changes in the peripheral lung due to congenital bronchial atresia. The pneumothorax may have occurred due to rupture of the bulla.