Intralobar pulmonary sequestration displayed as localized emphysema on computed tomography image

Abstract

BackgroundPulmonary sequestration is a relatively rare condition in which a systemic artery supplies blood to an abnormal lung tissue and the normal connection with the bronchial tree is absent. It can be displayed as various signs on the computed tomography image, but emphysema is extremely rare.Case presentationWe describe the case of a 35-year-old man with intralobar pulmonary sequestration that appeared as localized emphysema on the computed tomography image. The 3-D reconstruction revealed the presence of an anomalous feeding artery and the absence of normal connection with the bronchial tree.ConclusionWe presumed that it was a type between “anomalous systemic arterial supply to the normal lung” and the common type of pulmonary sequestration. Common pulmonary lobectomy was performed and the patient recovered well.

The aberrant systemic-pulmonary artery communication: three-dimensional image simulation

“…To identify aberrant vascular anatomy, multidetector computed tomography (MDCT) or multidetector computed tomography angiography (MDCTA) combined with 3-D reconstruction has gradually replaced the diagnostic role of angiography, which had been used conventionally for the determination of anomalous vessels. These new approaches are noninvasive and provide better spatial precision [2]. In our patient, both the image examination tools of MDCTA combined with 3-D volume rendering for reconstructing images and angiography were applied for a noninvasive approach to this vascular anomaly, aiming to delineate the anatomy of collateral aberrant vessels and planning surgical procedure [7], respectively, which provided a comparison between these two tools.…”

“…Here we report an extremely rare case of a 70-year-old woman with an anomalous systemic artery draining into the pulmonary artery and co-supplying the left upper lobe of the lung. As three-dimensional (3-D) reconstruction image has gradually replaced the diagnostic role of angiography in the aspect of determination of anomalous vessels [2], we present this rare congenital scenario and emphasize the importance of 3-D reconstruction image in providing not only a diagnosis but also preoperative simulation.…”

Posterior mediastinal extralobar pulmonary sequestration misdiagnosed as a neurogenic tumor: A case report

“…It is characterized by the absence of communication between the abnormal lung tissue and the bronchial tree, as well as the absence of normal lung function. There are various hypotheses on the mechanisms underlying the onset of lung isolation, but most studies support Pryce’s traction theory[ 7 , 8 ]. Compared to intralobar pulmonary sequestration (IPS), EPS is a rare type of pulmonary sequestration that usually occurs in the left lung, mainly between the left lower lobe and the diaphragm, although it may also occur within or under the diaphragm and in the mediastinum[ 3 ].…”