[Giant parathyroid adenoma with hypersecretion and severe clinical course--clinical case].

Primary hyperparathyroidism is an uncommon disease, with late diagnosis due to insidious and various symptoms. Parathyroid adenoma is the most frequent cause of primary hyperparathyroidism. This paper presents the clinic of disease, the necessary exams to perform in order to obtain a positive diagnosis also the case of young man with long evolution period prior to diagnosis and with severe complications at bones.