title: Functioning oxyphil parathyroid adenoma.
abstract: A hormonally active oxyphil adenoma of the parathyroid masqueraded as a thyroid nodule and was present as a palpable neck mass for more than six years prior to the onset of clinically obvious hyperparathyroidism. The slow evolution of the hyperparathyroidism in the presence of a relatively large adenoma was correlated with the presumptive low hormonal synthetic capacity of oxyphil cells that formed the bulk of the tumor.
mesh_terms: D000236:Adenoma / Q000503:physiopathology*; D000328:Adult; D005260:Female; D006801:Humans; D006961:Hyperparathyroidism / Q000209:etiology; D010281:Parathyroid Hormone / Q000378:metabolism; D010282:Parathyroid Neoplasms / Q000503:physiopathology*
chemical_list: D010281:Parathyroid Hormone