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Title
Thyroid gland follicle #240577573
Description
High magnification micrograph showing a thyroid follicle. The central colloid has undergone a small retraction and appears detached from the epithelium. Clear areas are visible at the edge of the colloid the classic `punch` images. They are the so-called ââ¬Åreabsorption vacuolesââ¬Â which were formerly interpreted as proof of the reabsorption of the colloid. Today they are considered artifacts.