RT Book, Section
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
SR Print(0)
ID 1105843624
T1 Pulmonary Sequestration
T2 Adult Chest Surgery, 2e
YR 2015
FD 2015
PB McGraw-Hill Education
PP New York, NY
SN 978-0-07-178189-3
LK accesssurgery.mhmedical.com/content.aspx?aid=1105843624
RD 2024/04/25
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.