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Thyroid Gland, Follicle - Pigment

Image of follicle pigment in the thyroid gland from a male F344/N rat in a subchronic study
Thyroid gland, Follicle - Pigment in a male F344/N rat from a subchronic study. Dense pigment deposits are present in the follicular epithelium and colloid.
Image of follicle pigment in the thyroid gland from a male F344/N rat in a subchronic study
Thyroid gland, Follicle - Pigment in a male F344/N rat from a subchronic study. Higher magnification of the pigment deposits in the follicular epithelium colloid in Figure 1.
Image of follicle pigment in the thyroid gland from a male F344/N rat in a chronic study
Thyroid gland, Follicle - Pigment in a male F344/N rat from a chronic study. Fine, brown, granular pigment is present within the follicular epithelium.
Image of follicle pigment in the thyroid gland from a male F344/N rat in a chronic study
Thyroid gland, Follicle - Pigment in a male F344/N rat from a chronic study. Fine, granular, brown pigment is present within the follicular epithelium.
NTP is located at the National Institute of Environmental Health Sciences, part of the National Institutes of Health.