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Congenital lobar emphysema associated with polysplenia syndrome.
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MedLine Citation:
PMID:  20864788     Owner:  NLM     Status:  MEDLINE    
Polysplenia, or left isomerism, is a rare heterotaxy syndrome characterized by bilateral bi-lobed lungs, bilateral pulmonary atria, a symmetrical midline liver, and multiple aberrant splenic nodules. We report a case of polysplenia associated with congenital lobar emphysema apart from other typical anomalies. Such an association has not been previously reported. The patient was a young male with progressive exertional breathlessness referred for high resolution CT of the lungs. CT, MRI and echocardiography revealed (in addition to congenital lobar emphysema of right lung) a hemiazygos continuation of the inferior vena cava, a persistent left superior vena cava, multiple splenunculi in the right hypochondrium, midline liver, bilateral bilobed lungs, a large pulmonary artery (suggestive of severe pulmonary artery hypertension) and a large VSD--a typical constellation of findings described in polysplenia syndrome.
Naseer A Choh; Suhil A Choh; Majid Jehangir; Bashir A Naikoo
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Annals of Saudi medicine     Volume:  30     ISSN:  0975-4466     ISO Abbreviation:  Ann Saudi Med     Publication Date:    2010 Nov-Dec
Date Detail:
Created Date:  2010-11-24     Completed Date:  2011-03-07     Revised Date:  2013-05-27    
Medline Journal Info:
Nlm Unique ID:  8507355     Medline TA:  Ann Saudi Med     Country:  Saudi Arabia    
Other Details:
Languages:  eng     Pagination:  482-4     Citation Subset:  IM    
Shri Maharaja Hari Singh Hospital, Kashmir, India.
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MeSH Terms
Abnormalities, Multiple / radiography*
Heart Septal Defects, Ventricular / ultrasonography
Liver / abnormalities,  radiography
Lung / abnormalities,  radiography
Pulmonary Emphysema / congenital,  radiography
Spleen / abnormalities*
Vena Cava, Inferior / abnormalities,  radiography

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Full Text
Journal Information
Journal ID (nlm-ta): Ann Saudi Med
Journal ID (publisher-id): ASM
ISSN: 0256-4947
ISSN: 0975-4466
Publisher: Medknow Publications, India
Article Information
© Annals of Saudi Medicine
Accepted Month: 12 Year: 2009
Print publication date: Season: Nov–Dec Year: 2010
Volume: 30 Issue: 6
First Page: 482 Last Page: 484
Publisher Id: ASM-30-482
PubMed Id: 20864788
DOI: 10.4103/0256-4947.70573

Congenital lobar emphysema associated with polysplenia syndrome
Naseer A. Choha
Suhil A. Chohb
Majid Jehangira
Bashir A. Naikooa
aFrom the Shri Maharaja Hari Singh Hospital, Kashmir, India
bFrom the Sher-i-Kashmir Institute of Medical Sciences, Soura, Srinagar, India
Correspondence: Correspondence: Suhil A. Choh, MD · House No E-12, Cooperative Colony, Peerbagh, Hyderpora, Srinagar, India ·

Polysplenia or left isomerism is a rare heterotaxy syndrome characterized by bilateral bilobed lungs, bilateral pulmonary atria, a symmetrical midline liver, and multiple aberrant splenic nodules. The spleen is divided into 2 to 16 masses that are located along the greater curvature of the stomach, either in the right or the left quadrant. The cardiovascular anomalies include left-to-right shunts, partial anomalous pulmonary venous return, and interrupted inferior vena cava (IVC) with azygos or hemiazygos continuation.1 We report a case of polysplenia associated with congenital lobar emphysema apart from other typical anomalies—an association that has not been previously reported in the literature.


A 40-year-old man presented with insidious-onset progressive breathlessness. Physical examination showed mild central cyanosis, parasternal heave, a short systolic murmur, and a loud second heart sound. A chest radiograph revealed an enlarged pulmonary conus and hilar vessels and a radiolucent area in the right upper zone. High-resolution CT of the chest showed an enlarged main and lobar pulmonary arteries (suggestive of pulmonary arterial hypertension), with an expanded hyperlucent right upper lobe, suggestive of congenital lobar emphysema. The azygous and accessory hemiazygos veins were enlarged, with drainage of the hemiazygos into a persistent left superior vena cava (SVC), which drained into the coronary sinus (Figure 1). The liver was seen in the midline position with a short segment of intrahepatic IVC. The stomach was in the right upper quadrant with multiple splenic masses in relation to the greater curvature (Figure 2). MRI confirmed the presence of bilateral bilobed lungs with hyparterial bronchi and of the accessory hemiazygos continuation of the IVC (Figures 3, 4). Transthoracic and transesophageal echo revealed a large ventricular septal defect (VSD) with pulmonary arterial hypertension, which was suggestive of Eisenmenger syndrome. The patient was referred to a tertiary care cardiothoracic surgery department for further management. To the best of our knowledge this is the first reported case of polysplenia associated with congenital lobar emphysema.


The clinical manifestations in polysplenia vary and sometimes can be mild, with many patients (approximately 10%) surviving into mid-adolescence. No single abnormality is pathognomonic for polysplenia; hence, some authors prefer to use the term heterotaxy, and suggest that the different anatomical abnormalities be mentioned while describing a particular patient.1, 2 The various cardiovascular anomalies that may be encountered include atrial septal defect (ASD) (78%), VSD (63%), partial anomalous pulmonary venous return (39%), transposition of the great arteries (31%), right-sided aortic arch (44%), pulmonary valvular stenosis (23%), and subaortic stenosis (8%).3 In addition, azygous continuation of the IVC is seen in 65% of cases and bilateral SVC in approximately 47%.1, 3

The abdominal findings may include midline liver (57%), situs inversus (21%), short pancreas, semiannular pancreas, and preduodenal portal vein.47 Renal agenesis or hypoplasia may also be seen.47 Malrotation, including nonrotation, reverse rotation, and midgut volvulus, is also frequently seen in heterotaxy.8, 9 CT as well as MRI can be used to characterize both the visceral and the cardiovascular anomalies in polysplenia and can provide necessary information for surgical planning.10 The antenatal diagnosis of cardiosplenic syndromes is possible by sonography supplemented with dedicated fetal echocardiography and color Doppler and, more recently, by ultrafast fetal MRI. Right isomerism is suggested by the presence of complete atrioventricular septal defect, juxtaposition of the IVC and descending aorta, and viscerocardiac heterotaxy. Similarly, in left isomerism, in addition to viscerocardiac heterotaxy and atrioventricular septal defect, azygous continuation of IVC and congenital heart block is also associated.11

The pulmonary manifestations include bilateral bilobed lungs and hyparterial bronchi (58%).1, 2 Our patient had a hyperlucent upper lobe with attenuated vascular markings, which was suggestive of congenital lobar emphysema, an entity not described in polysplenia until now. However, the association of congenital heart disease (patent ductus arteriosus, atrial septal defect, ventricular septal defect, total anomalous pulmonary venous return, Tetrology of Fallot with congenital lobar emphysema is well known12, 13 and is reported to occur in 14% to 50% of cases. Both ultrasound and MRI are useful in the antenatal diagnosis of congenital lobar emphysema as well as of other bronchopulmonary malformations. Ultrasound depicts congenital lobar emphysema as a distended fluid-filled anechoic mass that may decrease in size as the gestation progresses. Fetal MRI reveals the high-signal expanded lobe, with compression of the remaining lung and mediastinal deviation (on T2* GRE sequences).14, 15 In our patient, congenital lobar emphysema must have contributed to the worsening of the pulmonary arterial hypertension and dyspnea. The discovery of a bronchopulmonary malformation, including congenital lobar emphysema, on routine antenatal ultrasound should be followed by dedicated fetal echocardiography and a specific search for viscerocardiac heterotaxy.

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15. Babu R,Kyle P,Spicer RD. Prenatal sonographic features of congenital lobar emphysemaFetal Diagn TherYear: 200116200211399878


[Figure ID: F0001]
Figure 1 

High-resolution CT shows emphysematous right upper lobe with attenuated vascular markings; the accessory hemiazygous is seen draining into the left superior vena cava.

[Figure ID: F0002]
Figure 2 

Non-contrast CT of the upper abdomen shows midline liver, stomach on right side of liver and multiple spleens in right hypochondrium.

[Figure ID: F0003]
Figure 3 

Coronal T2-weighted MRI shows bilateral hyparterial bronchi with emphysematous right upper lobe.

[Figure ID: F0004]
Figure 4 

Axial T2-weighted MRI at carinal level shows a grossly enlarged main pulmonary artery, accessory hemiazygous and persistent left superior vena cava.

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