A confounding bronchopulmonary situs abnormality after bilateral lung transplantation

A 36-year-old female with a past medical history of primary ciliary dyskinesia and bilateral lung transplantation was noted to have a rare and confounding postsurgical anatomy acquired as a result of transplantation. Bronchoscopy and computed tomography showed isomeric main bronchi with a tri-lobed right lung, a bi-lobed left lung and dextrocardia. This rare phenomenon can be observed in lung transplant recipients with situs ambiguous morphology of their native lungs, who receive donor lungs with normal situs solitus morphology. To the best of our knowledge, ours is the first reported case of such a composite bronchopulmonary situs abnormality. Careful review of bronchial anatomy should be done with the help of CT imaging prior to undertaking any bronchial interventions in these subset of patients with bronchial isomerism and bilateral lung transplantation.