Presentation
Palpable lump left paramidline of the neck.
Patient Data
Age: 40 years
Gender: Female
From the case:
Thyroid colloid nodule
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Info

3 cm thin walled cyst in the left lobe of the thyroid.
Mulitiple small echogenic foci within the nodule, some of which contain comet-tail artifact.
Case Discussion
The typical appearances of a thyroid colloid nodule with comet-tail artifact.
Comet tail artifact has been described in several other pathologies including in adenomyomatosis of the gallbladder and both ureteric and gallstones.