On certain morphological aspects of regenerative significance in nodular adenomatous thyroid.

: The histologic study of 59 nodular adenomatous thyroids showed the existence of new-growth follicles originating in the preexistent ones. These changes, correlated with various circulatory disturbances, necrosis or chronic inflammation, their striking parallelism with the morphological aspects encountered in the course of thyroid histogenesis, strongly suggest their regenerative significance. The frequency and importance of such changes in the morphogenesis of adenomatous nodular thyroid are also emphasized.