What are rare pseudoinclusionsin thyroid fna. i know pseudoinclusions look like one circle inside another, but what does s the "rare" word mean?

Context.: "rare" probably means the pathologist saw two in the total material. While pseudoinclusions suggest papillary carcinoma (usually the least aggressive type of thyroid cancer), the pathologist will give the diagnosis based on the big picture. Good luck.

Thyroid FNA: Nuclear pseudoinclusions are a type of cell feature that can be seen by the pathologist in the analysis of a thyroid fna. It is associated with the diagnosis of papillary carcinoma of the thyroid. The number of pseudoinclusions seen is not necessarily pertinent, although the more seen, the more confidence it provides for the diagnosis of papillary carcinoma.