Abstract
Intralobar sequestration (ILS) is a complex lung lesion where part of a lower lobe lacks communication with the tracheobronchial tree and receives an aberrant arterial blood supply from the systemic circulation. That systemic artery is usually large, originating from the thoracic aorta or the abdominal aorta and its upper branches. We describe a case of ILS where a large systemic artery coming up from below the diaphragm is formed by the convergence of many very small serpiginous arteries coming up from the area of the celiac trunk and common hepatic artery: a kind of “rete mirabile”. This peculiar morphology was not described before.
Highlights
Pulmonary sequestration is a congenital pathology where part of the lung, usually in the lower lobes, has no connection with the central airways, and an arterial supply coming from a systemic origin
We describe a case of Intralobar sequestration (ILS) where a large systemic artery coming up from below the diaphragm is formed by the convergence of many very small serpiginous arteries coming up from the area of the celiac trunk and common hepatic artery: a kind of “rete mirabile”
ILS is a congenital pathology where part of the lung, usually in the lower lobes, has no connection with the central airways and an arterial supply coming form a systemic origin and where the abnormal lung segment lies in the same pleural sac
Summary
Pulmonary sequestration is a congenital pathology where part of the lung, usually in the lower lobes, has no connection with the central airways, and an arterial supply coming from a systemic origin. It is called an intra-lobar sequestration (ILS) when the abnormal lung segment lies in the same pleural sac, while it is an extra-lobar sequestration (ELS) when exists a separate pleural cavity. The large feeding artery having a systemic origin is often the clue to the diagnosis. A very peculiar finding is the appearance of the abnormal systemic artery, which is formed by the confluence of a meshwork of tiny arteries coming up from the area of the celiac trunk
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