Gallbladder polyp simulation

    Child on follow-up ultrasound because of gallbladder polyp.

    On US in the supine position: in the posterior wall of gallbladder visualized area similar to the inclusion / polyp(file 1), gallbladder has irregular shape; standing position: gallbladder has proper shape and inclusion isn' t visualized(file 2). Presumably it is a fold that disappear in standing position.

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