Highlights
- •Pulmonary venous anomalies are vascular mimics of pulmonary arteriovenous malformations that may lead to misdiagnosis.
- •Anomalous unilateral single pulmonary vein and meandering vein have clinical and imaging characteristics different from.
- •Optimal CT technique and careful review of CT scans are necessary to minimize inappropriate invasive pulmonary angiography.
Abstract
Purpose
To investigate pulmonary venous anomaly as a cause of pulmonary arteriovenous malformation
(PAVM) misdiagnosis.
Materials and methods
We reviewed adult patients within a 7.5-year period with CT scans initially diagnosed
with PAVM and subsequent conventional pulmonary angiograms.
Results
Pulmonary arteriography showed no PAVM on arterial phase for 10 out of 99 patients,
comprising the misdiagnosed group. Four misdiagnosed patients had pulmonary venous
anomalies and six had nodular lesions on CT.
Conclusion
Pulmonary venous anomalies are vascular mimics of PAVMs that may lead to misdiagnosis.
Optimal CT technique and careful imaging review are necessary to minimize inappropriate
invasive angiography.
Keywords
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Article Info
Publication History
Published online: September 08, 2017
Accepted:
September 6,
2017
Received in revised form:
August 9,
2017
Received:
May 9,
2017
Footnotes
☆Conflict of interest: None to disclose.
☆☆Source of funding: None to disclose.
Identification
Copyright
© 2017 Elsevier Inc. All rights reserved.
