Pseudohemothorax Induced by Residual Contrast Medium Mimicking Aortic Dissection Rupture

Overview

Journal Acta Radiol Open

Specialty Radiology

Date 2022 Apr 28

PMID 35480557

Authors

Kazuya Okamura

Rika Yoshida

Takeshi Yoshizako

Hajime Kitagaki

Affiliations

Soon will be listed here.

Abstract

Hemothorax is an urgent condition, and its accurate diagnosis and the identification of the cause are important. Herein, we report a case of a 74-year-old man with end-stage renal disease who was presented with high-concentration pleural effusion owing to residual contrast medium. The case required differentiation from hemothorax owing to an aortic dissection and its rupture. In patients with end-stage renal disease, noncontrast-enhanced computed tomography after contrast-enhanced computed tomography may result in high-concentration pleural effusion owing to the existence of residual contrast medium. This realization is important to determine whether high-concentration pleural effusion symptoms reflect an urgent hemothorax case possibly related to an imminent rupture of an aortic aneurysm or intrathoracic penetration of aortic dissection, and whether invasive procedures, such as thoracentesis, ought to be avoided.

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