<症例報告>Abnormal Branching of the Trachea の 1 例

Abstract

A case of abnormal bronchus in right lobe, so called "Abnormal Branching of the Trachea", that had been seen on 43 years old male, was presented. The patient suffered with the bloody sputa and hemoptysis for a couple of months before admission. After doing a bronchoscope and bronchography as a routine test for respiratory diseases, this abnormal branching of the trachea was clearly diagnosed together with the bronchiectasis localized in the right upper lobe, which was thought to be the cause of the bloody sputa and hemoptysis. When the lobectomy was performed successfully, an abnormal bronchus (B_<1+3>) branched directly from the trachea was confirmed to be parallel with B_2. Discussion is focuse on the embryological mechanism of abnormal bronchus formation.