Also found in: Dictionary, Thesaurus, Encyclopedia.
residual tissue derived from the hypophysial diverticulum that lies in the lamina propria of the nasopharynx; its cells and their arrangement are identical with those of the pars distalis of the adenohypophysis.
A small structure anterior to the pharyngeal bursa. It is derived from the lower portion of Rathke's pouch and occasionally gives rise to a cyst or tumor.
See also: hypophysis