Unveiling the Chiari network: A case report of misdiagnosis mimicking pulmonary embolism and right atrium thrombus.

Abstract

<h4>Background</h4>The Chiari network consists of movable, mesh-like structures occasionally observed in the right atrium proximate to the openings of the inferior vena cava and coronary sinus.<h4>Case presentation</h4>This case discusses a 75-year-old male initially suspected to have acute pulmonary thromboembolism, but we misdiagnosed the Chiari network as a thrombus in the right atrium. Subsequent echocardiography revealed a Chiari network in the right atrium. Accurate identification using transthoracic echocardiography, Doppler echocardiography, is crucial.<h4>Conclusion</h4>Accurate identification of the Chiari network is essential for optimal patient care. Thorough evaluation is crucial in cases suggestive of acute pulmonary thromboembolism or right atrium thrombus.