Thyroid colloid nodule

Case contributed by Ian Bickle
Diagnosis almost certain

Presentation

Right neck lump. Thyroid cyst on ultrasound.

Patient Data

Age: 45 years
ultrasound

Large cyst in the right lobe of the thyroid gland.

Multiple comet-tail artifacts within the cyst.

Annotated image

Comet-tail artifacts throught out the cyst (red arrows).

Case Discussion

The typical appearances of comet-tail artifact which classically occurs in thyroid colloid nodules.

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