26 year old male presents to OPD with a discrete thyroid swelling. On neck USG , an isolated cystic swelling of gland is seen. How much percentage will be the risk of malignancy?
- This is a case of an isolated cystic swellings. Risk of malignancy in this case is 24%. - Risk of malignancies in thyroid swelling can be expressed as a factor of 12 known as 'rule of twelve' - Isolated Thyroid swelling: Solid 24% Cystic 12% - Dominant Thyroid swelling: Solid 12% Cystic 6% - Generalized Thyroid swelling: 3%
48%
24%
12%
3%
Thyroid