Multinodular Goiter (FNA Hi Power)
Multinodular Goiter (FNA Hi Power)

This is an H&E stained needle aspirate of a thyroid follicle.
The yellow arrow points to the acellular center of the follicle containing colloid, which does not stain well.
The blue arrow points to a normal follicular cell nucleus.
This corresponds to a normal sized or enlarged follicle, not a microfollicle.
(Description By:Melinda Sanders, M.D. )
(Image Contrib. by:Melinda Sanders, M.D. UCHC )