Differential diagnostics of follicular proliferation (III)
Follicular adenoma - Case 24
Benign hyperplastic nodules - Case 31

The two patterns are similar: there is a follicular growth pattern with mixed micro- and normofollicles, the follicular cells are of even size except for a few enlarged nuclei. The only significant difference is in the presence of colloid. There is no colloid in the case of adenoma while diffuse colloid precipitate is present in the other case.