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Parathyroid Gland - Hyperplasia, Focal - Gallery

Image of hyperplasia, focal in the parathyroid gland from a male F344/N rat in a chronic study
Parathyroid Gland - Hyperplasia, Focal in a male F344/N rat from a chronic study. This low-magnification photomicrograph contains a focus of hyperplasia (arrow) with a growth pattern distinct from the adjacent parathyroid parenchyma.
Image of hyperplasia, focal in the parathyroid gland from a male F344/N rat in a chronic study
Parathyroid Gland - Hyperplasia, Focal in a male F344/N rat from a chronic study. Focal hyperplasia is characterized by cells with rounded nuclei and abundant hypertrophic cytoplasm but without compression of adjacent parathyroid parenchyma.
Image of hyperplasia, focal in the parathyroid gland from a male Wistar Han rat in a chronic study
Parathyroid Gland - Hyperplasia, Focal in a male Wistar Han rat from a chronic study. Two focal areas of hyperplasia with pale, enlarged cells (compared with surrounding parathyroid parenchyma) are present.
Image of hyperplasia, focal in the parathyroid gland from a male F344/N rat in a chronic study
Parathyroid Gland - Hyperplasia, Focal in a male F344/N rat from a chronic study. Two to three adjacent nests of hyperplastic foci are present; the pale staining of their hypertrophic cells makes them stand out from the normal parathyroid tissue.