Your browser does not support JavaScript or has JavaScript turned off. The Atlas functions best with JavaScript enabled but may used without JavaScript.

Pituitary Gland, Pars Distalis - Atrophy - Gallery

Image of pars distalis atrophy in the pituitary gland from a female F344/N rat in a chronic study
Pituitary Gland, Pars distalis - Atrophy in a female F344/N rat from a chronic study. The pars distalis (asterisk) is reduced in size and contains a focal aggregate of yellow-brown pigment (likely hemosiderin) within macrophages (arrow).
Image of pars distalis atrophy in the pituitary gland from a female F344/N rat in a chronic study
Pituitary Gland, Pars distalis - Atrophy in a female F344/N rat from a chronic study. Higher magnification of Figure 1 shows the reduction in the size of the pars distalis (asterisk) and the focal aggregate of macrophages (arrow) containing yellow-brown pigment (likely hemosiderin).
Image of pars distalis atrophy in the pituitary gland from a female F344/N rat in a chronic study
Pituitary Gland, Pars distalis - Atrophy in a female F344/N rat from a chronic study. Higher magnification of Figure 2 shows that the atrophic pars distalis has a paucity of cells and that macrophages containing yellow-brown pigment (likely hemosiderin) are present in the atrophic tissue.
Image of pars distalis atrophy in the pituitary gland from a female F344/N rat in a chronic study
Pituitary Gland, Pars distalis - Atrophy in a female F344/N rat from a chronic study. Higher magnification of Figure 3 shows the atrophic pars distalis with the pigment laden macrophages in greater detail.
NTP is located at the National Institute of Environmental Health Sciences, part of the National Institutes of Health.