Trial Comparing 2 Diagnostic Strategies for Preoperative Localization of Parathyroid Adenoma in Primary Hyperparathyroidism:TEMP / CT With Tc99m-sestaMIBI or PET / CT With F18-choline in First Intention

Inclusion Criteria: * Patient 18 years old * Patient presenting with primary hyperparathyroidism and for whom an excisional surgery is planned * For women of childbearing age, negative pregnancy test at Baseline * Biological assessment confirming the diagnosis of primary hyperparathyroidism (high serum PTH and calcium concentrations) * Affiliation to a social security scheme * Patient having signed his written consent Exclusion Criteria: * Patient deprived of liberty, under tutorship or curatorship * Hypersensitivity to TECNESCAN SESTAMIBI * Any associated medical or psychological condition that could compromise the patient's ability to participate in the study * Pregnant or lactating woman * History of parathyroid surgery * Patient with multiple endocrine neoplasia 1 (NEM1) * Known hypersensitivity to fluorocholine or to any of the excipients (sodium chloride, water for injections)