Endovascular treatment of aberrant systemic arterial supply to normal basilar segments of the right lower lobe: case report and review of the literature.

We report the case of a 17-year-old man with acute chest pain due to a partial thrombosis of a pseudosequestration. Unlike a true sequestration, there was a normal bronchial distribution and the involved lung parenchyma was normal on CT scan. A therapeutic transarterial embolization of the aberrant systemic artery from the proximal abdominal aorta was performed successfully. The patient did not suffer from further chest pain during the follow-up of 12 months. A contrast-enhanced CT scan 4 months later demonstrated complete occlusion of the embolized aberrant artery. Our case represents an alternative treatment to surgery for this rare abnormality.