Document Detail


Partial anomalous pulmonary venous drainage of the left upper lobe vs duplication of the superior vena cava: distinction based on CT findings.
MedLine Citation:
PMID:  8424355     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: Partial anomalous pulmonary venous drainage of the left upper lobe and duplication of the superior vena cava have similar appearances on CT scans. The purpose of this study was to review their appearances and provide guidelines for differentiating between them. MATERIALS AND METHODS: A review of the CT reports for the preceding 4 years disclosed seven patients whose original diagnosis was duplication of the superior vena cava and one patient whose diagnosis was partial anomalous pulmonary venous drainage of the left upper lobe. The 14 CT examinations of these eight patients were reviewed in order to observe the CT findings in each anomaly. RESULTS: In only five of the seven patients whose original diagnosis was duplication of the superior vena cava were CT findings compatible with that diagnosis. In the other two, CT findings were compatible with partial anomalous pulmonary venous drainage of the left upper lobe, as they were in the one patient with that as his original diagnosis. Two CT findings allow consistent differentiation. In duplication of the superior vena cava, two vessels can be seen anterior to the left main bronchus, whereas no vessels are present in this location in partial anomalous pulmonary venous drainage of the left upper lobe. Additionally, careful inspection reveals that the intraparenchymal veins in the left upper lobe drain to the normally positioned left superior pulmonary vein in duplication of the superior vena cava, whereas they drain to the anomalous vessel in partial anomalous pulmonary venous drainage of the left upper lobe. CONCLUSION: Careful analysis of the CT scans with particular attention to these two features allows differentiation between partial anomalous pulmonary venous drainage of the left upper lobe and duplication of the superior vena cava.
Authors:
E H Dillon; C Camputaro
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  AJR. American journal of roentgenology     Volume:  160     ISSN:  0361-803X     ISO Abbreviation:  AJR Am J Roentgenol     Publication Date:  1993 Feb 
Date Detail:
Created Date:  1993-02-24     Completed Date:  1993-02-24     Revised Date:  2010-03-24    
Medline Journal Info:
Nlm Unique ID:  7708173     Medline TA:  AJR Am J Roentgenol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  375-9     Citation Subset:  AIM; IM    
Affiliation:
Centrum Radiodiagnostiek, Academisch Ziekenhuis Utrecht, The Netherlands.
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MeSH Terms
Descriptor/Qualifier:
Congenital Abnormalities / radiography
Diagnosis, Differential
Humans
Image Processing, Computer-Assisted
Pulmonary Veins / abnormalities*,  radiography*
Tomography, X-Ray Computed*
Vena Cava, Superior / abnormalities*,  radiography*

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