TY - CHAP M1 - Book, Section TI - Pulmonary Sequestration A1 - Zellos, Lambros A2 - Sugarbaker, David J. A2 - Bueno, Raphael A2 - Colson, Yolonda L. A2 - Jaklitsch, Michael T. A2 - Krasna, Mark J. A2 - Mentzer, Steven J. A2 - Williams, Marcia A2 - Adams, Ann Y1 - 2015 N1 - T2 - Adult Chest Surgery, 2e AB - Pulmonary sequestration is a congenital syndrome characterized by abnormal systemic blood supply to the lung, usually the lower lobe. The anomaly causes a predisposition for pulmonary complications such as infection and hemoptysis. There are two types of sequestrations, intralobar and extralobar. As the name implies, the intralobar sequestration is located within the normal lung (Fig. 93-1), whereas the extralobar sequestration is separate from the normal lung, enclosed in its own pleural envelope (Fig. 93-2). One should be aware of the various other associated anomalies, such as abnormal communication of the bronchial tree, systemic venous drainage, rare communication to the foregut, and diaphragmatic hernia (Table 93-1). In addition, the aberrant systemic vessel can arise from any systemic intrathoracic or upper abdominal vessel, such as the aorta, the subclavian artery, and even the coronary arteries. While they are found most commonly in the lower lobes, left more often than right, sequestrations also can occur in the right or left upper lobe. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/23 UR - accesssurgery.mhmedical.com/content.aspx?aid=1105843624 ER -