title: [Parathyroid scintigraphy with Tc99m Sestamibi].
abstract: BACKGROUND
  Parathyroid scintigraphy with Tc99m Sestamibi, a tracer that is taken up by hyperfunctioning parathyroid tissue, has a high yield in the diagnosis of abnormal parathyroid growths.
  
  
  OBJECTIVE
  To assess the usefulness of parathyroid scintigraphy with Tc99m Sestamibi in patients with suspected hyperparathyroidism.
  
  
  METHODS
  We analyzed retrospectively 29 patients with suspected hyperparathyroidism, in whom a scintigraphy with Tc99m Sestamibi was performed.
  
  
  RESULTS
  Twenty four of 25 patients in whom hyperfunctioning parathyroid tissue was evidenced with scintigraphy, were operated. Histological diagnosis of the excised parathyroid gland, showed 23 adenomas and 1 hyperplasia. Anatomical location disclosed by scintigraphy was concordant with surgical findings in all cases, including a mediastinic adenoma. Of the four patients with negative scintigraphic findings, two had transitory PTH elevations and in two the presence of adenoma or hyperplasia could not be demonstrated with other diagnostic procedures.
  
  
  CONCLUSIONS
  Parathyroid scintigraphy with Tc99m Sestamibi had an 86% sensitivity for the detection of hyperfunctioning parathyroid tissue in patients with elevated PTH.
authors.affiliation: Unidad Medicina Nuclear, Clínica Alemana de Santiago, Chile.
authors.forename: R
authors.initials: R
authors.lastname: Pruzzo
authors.forename: H
authors.initials: H
authors.lastname: Amaral
authors.forename: B
authors.initials: B
authors.lastname: Morales
authors.forename: S
authors.initials: S
authors.lastname: Majlis
authors.forename: E
authors.initials: E
authors.lastname: Hurtado
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D006961:Hyperparathyroidism / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D017256:Technetium Tc 99m Sestamibi
chemical_list: D019275:Radiopharmaceuticals; D017256:Technetium Tc 99m Sestamibi
vernacular_title: Cintigrafía de paratiroides con Tc99m Sestamibi.