Thyroid ultrasound: Shadowing caused by surgical clip
Thyroid ultrasound: Shadowing caused by surgical clip
Surgical clip (arrows) producing reverberation artifact. Metallic artifacts are typically linear and fairly straightforward to distinguish from organic calcifications. An organic (coarse) calcification would have signal dropout posteriorly instead of this linear enhancement as seen in this image.
Courtesy of Jennifer A Sipos, MD.
Graphic 132392 Version 1.0
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