My CT scan says there is a 3 mm hypodense nodule in the lateral aspect of the right lobe of the thyroid gland. There is a borderline prominence of the roght lobe of the thyroid with transverse dimension of 2.2 by 1.8 cm.
There is a mild enlargement of the right lobe of the throid gland. I had a nuclear scan plus an ultra sound. The nuclear scan found the nodule to be cold and hypodense. The next step is a biopsy for me. My question is nodules seen like this, what is the percentage for malignancy and what stage are most of these seen in? Thankyou
Ultrasound is the best way to evaluate nodules. A 3mm nodule is too small to see on nuclear scanning, but CT often underestimates the size. So if the ultrasound shows a nodule that is at least 1cm in size and the TSH (blood test) is not low - the next step is ultrasound guided FNA biopsy. About 10% chance of cancer and most are very treatable.
This is smaller than what we would usually FNA. Would repeat US in 5-6 months to make sure it is stable. Heterogeneous nodules are usually benign. Would consider TPO antibody levels -- as hashimoto's can give the impression of heterogeneous areas that appear like nodules but really are "pseudonodules"
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