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Multiple concurrent atypical parathyroid adenomas: a rare occurrence. We present a case of an 80-year-old patient with three concurrent multiple atypical parathyroid adenomas. The patient was managed with bilateral parathyroid exploration and concurrent parathyroidectomy. Postoperative recovery was uneventful. Atypical parathyroid adenomas are a rare entity that are clinically difficult to distinguish from parathyroid carcinoma. Histological characteristics are similar however atypical adenomas lack complete capsular or vascular invasion and cannot be considered malignant. All reported cases of atypical parathyroid adenoma are solitary lesions. We present the first case of multiple concurrent atypical parathyroid adenomas.