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Tracheal Bronchus, Pig Bronchus or Bronchus Suis

History: 60 year old male undergoing chest CT for follow up of a lung mass. This anatomical variant is referred to as a tracheal bronchus. When the entire upper lobe is supplied by the accessory bronchus, it is called a pig bronchus. An excellent article summarizing these anatomical variants is present here. These variant bronchi … Continue reading