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Published in: BMC Medical Imaging 1/2019

Open Access 01-12-2019 | Ultrasound | Case report

Intercostal artery pseudoaneurysm following thoracentesis: multi-modal imaging and treatment

Authors: Kaitlyn P. Casper, Paul J. Sanchirico, David C. Pfeiffer

Published in: BMC Medical Imaging | Issue 1/2019

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Abstract

Background

A pseudoaneurysm occurs as the result of a contained rupture of an arterial wall, yielding a perfused sac that communicates with the arterial lumen. Pseudoaneurysm of an intercostal artery is an extremely rare event but it carries with it a significant risk of rupture and subsequent hemothorax. It must be considered as a potential complication of thoracentesis.

Case presentation

Here, we report a rare case of an intercostal artery pseudoaneurysm following thoracentesis in an 82-year old male. The patient presented with respiratory distress 1 day after a therapeutic thoracentesis had been performed. Computed tomography (CT) with contrast revealed a left intercostal pseudoaneurysm with hemothorax and adjacent compressive atelectasis. Doppler ultrasound revealed bidirectional blood flow in the pseudoaneurysm sac. An intercostal arteriogram and thoracic aortogram aided in confirmation of the pseudoaneurysm and successful treatment with coil embolization.

Conclusions

An intercostal pseudoaneurysm complication following thoracentesis is very rare but important to rule out as a possible cause of hemothorax after the procedure. Capturing this finding with the aid of multiple imaging modalities allowed for diagnostic certainty and rapid treatment with coil embolization, leading to a successful patient recovery.
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Metadata
Title
Intercostal artery pseudoaneurysm following thoracentesis: multi-modal imaging and treatment
Authors
Kaitlyn P. Casper
Paul J. Sanchirico
David C. Pfeiffer
Publication date
01-12-2019
Publisher
BioMed Central
Published in
BMC Medical Imaging / Issue 1/2019
Electronic ISSN: 1471-2342
DOI
https://doi.org/10.1186/s12880-019-0333-5

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