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Thymus - Pigment - Gallery

Image of pigment in the thymus from a female F344/N rat in a chronic study
Thymus - Pigment in a female F344/N rat from a chronic study. Brown pigment (likely hemosiderin) (arrow) is present at the thymus corticomedullary junction.
Image of pigment in the thymus from a female F344/N rat in a chronic study
Thymus - Pigment in a female F344/N rat from a chronic study (higher magnification of Figure 1). Numerous macrophages contain intracytoplasmic dark brown granular pigment (arrow).
NTP is located at the National Institute of Environmental Health Sciences, part of the National Institutes of Health.