São Paulo Medical Journal ()

Nonfunctional parathyroid cyst: case report

  • Carlos Eduardo Molinari Nardi,
  • Ricardo Adriano Nasser Barbosa da Silva,
  • Cynthia Maria Massarico Serafim,
  • Rogério Aparecido Dedivitis

DOI
https://doi.org/10.1590/S1516-31802009000600012
Journal volume & issue
Vol. 127, no. 6
pp. 382 – 384

Abstract

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CONTEXT: Parathyroid cysts are rare clinical and pathological entities, with less than 300 cases reported. The inferior parathyroid glands are most commonly involved, with left-side predominance. Parathyroid cysts may be functional or nonfunctional, depending on their association with hypercalcemia. CASE REPORT: A 25-year-old man presented a palpable asymptomatic left-side neck mass. Ultrasound revealed a cystic structure contiguous with the left thyroid lobe. Serum ionic calcium was normal. The patient underwent left thyroid lobectomy plus isthmectomy with excision of the cyst. The histological findings revealed a parathyroid cyst. Parathyroid cysts typically present as asymptomatic neck masses, and surgical excision appears to be the treatment of choice.

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