What is your opinion about circled Opacity?

65M P/w acute exacerbation of copd, kco pul TB Question here is, the marked /circled lesion/or artefact? Please comment

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That is artifact
Artefact.
Changes of COPD emphysema with old Infective sequelae. Looks like artefact in the pocket.
Artefact Coin in shirt. Stomach. Intestine
Although the shape is suspicious for being a coin? Isn't it?
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Artefact