Bronchial isomerism associated with tumorlet: an unusual case

Anatomical variants of the tracheobronchial tree are uncommon.Bronchial isomerism refers to a disorder of bronchopulmonary laterality; right-sided bronchial isomerism is characterized by bilateral trilobed lungs.This anatomical variant is usually asymptomatic, and the clinical presentation depends on the associated malformations and alterations.Cases of congenital tracheobronchial malformations with increased risk of cancer have been reported.We present the case of a young patient with bronchial isomerism who underwent lobectomy for bronchiectasis and the presence of a tumorlet in the resected tissue.