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Methods of preoperative localisation of parathyroid tumours [15]
| Thallium/technetiun | Tc-99m (sodium pertechnate) thyroid |
| Tl-201 (thallous chloride) both | |
| Subtract Tc from Tl | |
| Sestamibi | Protein with Tc-99m which localises parathyroids |
| Sensitive for single adenomas (90 %) but less for hyperplasia | |
| Sensitivity increases with SPEC (single photon-emission CT) | |
| Selective venous sampling PTH | Most reliable (SVC, innominate, internal jugular, small v ) |
| U/S/CT/MRI | See text |
