title: Hyperparathyroidism associated with a parathyroid cyst: an unusual presentation.
abstract: In a case of hyperparathyroidism associated with a large parathyroid cyst a causal association was demonstrated by the presence of enormous quantities of parathormone in the cyst fluid. Assay of hormone levels in the cyst fluid in future cases may be helpful in elucidating the aetiology of this rare condition.
mesh_terms: D003560:Cysts / Q000150:complications* / Q000378:metabolism; D006801:Humans; D006961:Hyperparathyroidism / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D010279:Parathyroid Diseases / Q000150:complications*; D010281:Parathyroid Hormone / Q000032:analysis
chemical_list: D010281:Parathyroid Hormone