8 doctors weighed in:

What is a circumscribed thyroid nodule exactly?

8 doctors weighed in
Dr. Susan Wingo
Internal Medicine - Endocrinology
6 doctors agree

In brief: It depends

Circumscribed, on an ultrasound report, describes how distinct the border is between the nodule and the normal thyroid tissue.
It would usually be preceded by "well" for nodules with sharp outlines, or "poorly" for nodules with blurred outlines.

In brief: It depends

Circumscribed, on an ultrasound report, describes how distinct the border is between the nodule and the normal thyroid tissue.
It would usually be preceded by "well" for nodules with sharp outlines, or "poorly" for nodules with blurred outlines.
Dr. Susan Wingo
Dr. Susan Wingo
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Dr. Mila McManus
Family Medicine

In brief: Border around nodule

'circumscribed' defines how sharp the border is around the nodule which is suggestive of benign vs cancerous nodule.
If nodule is well-circumscribed, it can be benign or cancerous, but more likely benign. If a nodule is poorly circumscribed, it's more likely to be cancerous.

In brief: Border around nodule

'circumscribed' defines how sharp the border is around the nodule which is suggestive of benign vs cancerous nodule.
If nodule is well-circumscribed, it can be benign or cancerous, but more likely benign. If a nodule is poorly circumscribed, it's more likely to be cancerous.
Dr. Mila McManus
Dr. Mila McManus
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