Ectopic parathyroid adenomas are considered the main cause of primary hyperparathyroidism. However, concurrent parathyroid and thymic pathologies are rarely diagnosed in the same patient. A 47-year-old man with history of diabetes mellitus, hypertension, and myasthenia gravis presented with persistent hypercalcemia. Laboratory investigations, computed tomography, and technetium-99 m sestamibi scintigraphy revealed ectopic parathyroid glands, a mediastinal mass, and an enlarged thymus. The patient underwent thymectomy and mass excision via a median sternotomy. Histopathology was consistent with ectopic parathyroid adenoma and thymolipoma. The serum calcium and parathormone concentrations normalized within 48 hours after surgery.

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http://dx.doi.org/10.1177/0218492316669643DOI Listing

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