title: The microscopical pathology of primary parathyroid hyperplasia.
abstract: The microscopical pathology of the two types of primary parathyroid hyperplasia is reviewed. The importance of the differential diagnosis between chief cell hyperplasia and adenoma is stressed. The problems of the surgical pathologist in masking this differential diagnosis of a biopsy, especially on a frozen section sample, are discussed.
mesh_terms: D001706:Biopsy; D006801:Humans; D006961:Hyperparathyroidism / Q000473:pathology; D006965:Hyperplasia; D010280:Parathyroid Glands / Q000473:pathology*