Cardiac devices such as pacemakers, loop recorders, etc. are commonly seen on chest radiograph.

Left atrial closure devices are not as often seen. Also, different types are used by cardiac surgeons depending on the clinical scenario. It is crucial to know their appearance and typical position. 

In this case, an AtriClip closure device within the left appendage is seen. 

Disclosure: I, Aneta Kecler-Pietrzyk, have no actual or potential ethical or financial conflict of interest in relation to this device. This case is not intended to be a personal endorsement or recommendation of this product.