Key result
TEE reveals an atypical cystic mass on an ASD occluder surgically confirmed as vegetation.
Why the study?
Late infective endocarditis of an atrial septal defect occluder device can present with atypical echocardiographic features that require detailed evaluation.
Case Report (n=1)
This case highlights that late infective endocarditis on an ASD occluder device can present atypically as a cystic mass on echocardiography.
Unusual TEE features of device vegetation warrant interpretive caution; leaves open need for multimodal confirmation in ASD occluder IE.
We report an atypical echocardiographic presentation of a vegetation in a patient with late infective endocarditis of an atrial septal defect (ASD) occluder device. Transesophageal echocardiography demonstrated a penduculated mass attached to the left atrial side of the occluder device. This mass presented as an oscillating echo free area surrounded by a membrane attached to the device by a thin stalk. At time of surgical excision, the lesion did not present as a spherical cyst. It was assumed that the content of the echo free mass had already emptied into the left atrium. Histopathology diagnosed the mass as a vegetation. The contribution of contrast echocardiography to the evaluation of intracardiac masses is briefly discussed.
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Walpot et al. (2011) conducted a case report in Late infective endocarditis of an atrial septal defect (ASD) occluder device (n=1). Atrial septal defect (ASD) occluder device was evaluated on Echocardiographic presentation and histopathological diagnosis. Transesophageal echocardiography revealed an atypical cystic mass attached to an ASD occluder device, which was subsequently diagnosed as a vegetation by histopathology following surgical excision.
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