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Tracheal bronchus: a rare cause of recurrent pneumonia in adults
  1. Mayank Mishra and
  2. Arjun Kumar
  1. Pulmonary Medicine, All India Institute of Medical Sciences, Rishikesh, India
  1. Correspondence to Dr Mayank Mishra; virgodrmayank{at}


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.

  • Respiratory medicine
  • Pneumonia (respiratory medicine)
  • Radiology

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  • Contributors Literature search, preparation of initial draft, manuscript editing and review, approval of final draft and patient management: AK and MM; Concept, design and guarantor: MM.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.