Chance of cancer?

[mmb87]

I have a history of papillary carcinoma and had the right side of my thyroid removed. recently ad a biopsy of a left side nodule that has doubled in size in the last year and has a tirads rating of 4. Is it likely that this is cancer as well?

[Barb135]

The Ti-Rads system is broken down even further when it gets into the 4th category as follows:

TI-RADS 4:
• 4a – Undetermined nodules (5-10% risk of malignancy)
Score of 1.
• 4b – Suspicious nodules (10-50% risk of malignancy)
Score of 2.
• 4c – Highly suspicious nodules (50-85% risk of malignancy)
Score of 3-4

http://webcir.org/revistavirtual/articulos/noviembre14/argentina/ti_rads_classification.pdf

Another site with the same information:
https://radiopaedia.org/articles/thyroid-image-reporting-and-data-system-tirads

Do you know which of the sub-categories your nodule falls into?

[mmb87]

Unfortunately, for whatever reason, the radiologist didn't specify, and only reported 4. I even requested some clarity but got the same answer again. Based on my research and having read my report, I'd say it's likely 4b. 10-50% is such a huge range