To provide you with additional information about how we collect and use your personal data, we’ve recently updated our Privacy Policy and Terms of Service. Please review these pages now, as they apply to your continued use of our website.
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 “reabsorption vacuoles†which were formerly interpreted as proof of the reabsorption of the colloid. Today they are considered artifacts.