Atypical Cystic Parathyroid Adenoma Masquerading as a Thyroid Nodule and Presenting with Severe Hypercalcemia
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چکیده
Primary hyperparathyroidism (PHPT) is the most common cause of hypercalcemia. Majority of cases are related to single gland adenoma. Parathyroid carcinoma, atypical parathyroid adenoma, parathyroid cysts and parathyromatosis are rare conditions that account for approximately 2% of all patients with PHPT. We report an unusual case of severe hypercalcemia due to cystic atypical parathyroid adenoma [1], which appeared as thyroid nodule on ultrasound. Such a case is rarely described in literature.
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