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Doughnut Shaped Parathyroid Adenoma


  • Derya Çayır
  • Mehmet Bozkurt
  • Mehmet Erdoğan
  • Salih Sinan Gültekin
  • Cem Azılı
  • Ata Türker

Received Date: 19.04.2018 Accepted Date: 27.07.2018 Mol Imaging Radionucl Ther 2019;28(1):41-43

A 52-year-old woman presented with a complaint of neck swelling. The patient showed signs of hyperparathyroidism: hypercalcemia, and hypophosphatemia. Tc-99m MIBI dual-phase parathyroid scintigraphy and SPECT revealed increased activity in a regular-bordered, “doughnut”-shaped mass on the left side of the thyroid gland with a central hypoactive area. The cervical ultrasound identified a mixed echoic thyroid nodule with a central large cystic portion, and no parathyroid gland abnormality. Total thyroidectomy and parathyroid exploration was performed. Pathological evaluation of the resected thyroid specimen reported a giant intra-thyroidal hemorrhagic parathyroid adenoma.

Keywords: Parathyroid adenoma, Tc-99m sestamibi, SPECT


Informed Consent: Consent form was filled out by all participants.

Peer-review: Externally peer-reviewed.

Authorship Contributions

Surgical and Medical Practices: C.A., A.T., Concept: D.Ç., M.B., Design: D.Ç., Data Collection or Processing: D.Ç., M.B., M.E., Analysis or Interpretation: D.Ç., S.S.G., Literature Search: D.Ç., M.B., Writing: D.C., M.B.

Conflict of Interest: No conflict of interest was declared by the authors.

Financial Disclosure: The authors declared that this study received no financial support.


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