only a few b lymphocytes ( smigm+ , smigd+ ) , granulocytes ( vimd5+ ) , and natural killer cells ( vep13+ , leu7+ ) were noted in the interstitium between thyroid follicles , intruding between thyroid follicular epithelial cells and merging into the thyroid follicular lumen .
C0229577
thyroid follicles
C0040132
thyroid