Comet tail artifact

Last revised by Ashesh Ishwarlal Ranchod on 28 Oct 2023

The comet tail artifact is a grey scale ultrasound finding seen when small calcific / crystalline / highly reflective objects are interrogated and is believed to be a special form of reverberation artifact.

It is similar to the color comet tail artifact and is seen in similar situations, although is in general less sensitive than the latter.

Differential diagnosis

Possible considerations include:

See also

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Cases and figures

  • Figure 1: comet-tail
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  • Case 1: adenomyomatosis
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  • Case 2: adenomyomatosis
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  • Case 3: thyroid colloid cyst
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  • Case 4: thyroid colloid cyst
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  • Case 5: gallbladder adenomyomatosis
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  • Case 6: calcified hepatic granulomata
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  • Case 7: testicular microlithiasis
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  • Case 8: colloid nodule (thyroid)
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  • Case 9: prostatic brachytherapy seeds
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