Shanny - I don't know if that's considered a large nodule.
But, I do know that most nodules are NOT cancerous.
This site says only 5% are cancerous:https://www.endocrineweb.com/conditions/thyroid/fine-needle-biopsy-thyroid-nodules
And this site says 10-15% are: (American Cancer Society)
"Lumps or bumps in the thyroid gland are called thyroid nodules. Most thyroid nodules are benign, but about
2 or 3 in 20 are cancerous. Sometimes these nodules make too much thyroid hormone and cause hyperthyroidism. Nodules that produce increased thyroid hormone are almost always benign."https://www.cancer.org/cancer/thyroid-cancer/about/what-is-thyroid-cancer.html
And, even IF it's cancerous:
"Most thyroid cancers are very curable. In fact, the most common types of thyroid cancer (papillary and follicular thyroid cancer) are the most curable. In younger patients, less than 50 years of age, both papillary and follicular cancers have a more than 98% cure rate if treated appropriately."https://www.endocrineweb.com/conditions/thyroid-cancer/thyroid-cancer