Thyroid Nodules
Answers to common questions about thyroid nodules.
Questions on this page
What is a thyroid nodule?
A thyroid nodule is a lump within the thyroid gland.
Are thyroid nodules dangerous?
Most thyroid nodules are not cancerous, but some require evaluation.
How is a thyroid nodule evaluated?
Evaluation may include:
Clinical examination → TSH → Ultrasound → FNAC when indicated NIDDK Reference
Does every thyroid nodule need FNAC?
No.
FNAC is recommended for selected nodules based on their ultrasound appearance and size.
What is thyroid ultrasound?
Ultrasound uses sound waves to create pictures of the thyroid.
It helps assess:
- Nodule size
- Shape
- Composition
- Margins
- Calcifications
- Other features associated with cancer risk
What is TI-RADS?
TI-RADS is an ultrasound-based system used to classify thyroid nodules according to their risk features and help decide whether follow-up or FNAC is appropriate.
Can a thyroid nodule disappear?
Some nodules may decrease in size, particularly cystic nodules.
Others remain stable for years.