An Unusual Mass of Posterior Mediastinum: A Case of Retrotracheal Parathyroid Adenoma Presenting With Primary Hyperparathyroidism

Abstract

Although parathyroid ectopy in the mediastinum has been the subject of several publications, its location in the posterior mediastinum is very rarely reported. We report a case of a 69-year-old patient who presented with clinical symptoms of malignant hypercalcemia due to a retrotracheal mediastinal parathyroid adenoma. The surgical excision leads to a quick normalisation of the phosphocalcic balance with improvement of the clinical symptoms. Ectopic hypersecreting parathyroid adenoma with life-threatening hypercalcemia should prompt radiological assessment and appropriate surgical management to prevent further clinical complications.

An Asymptomatic Primary Hyperparathyroidism Case Due to a Mediastinum Localized Ectopic Giant Parathyroid Adenoma

“…Approximately 80% of parathyroid adenomas present with asymptomatic hypercalcemia while giant adenomas mostly demonstrate severe symptoms due to the metabolic abnormalities. Fatigue, muscular, skeletal, and cardiac complaints are major symptoms that are seen in most of the patients with giant adenomas because of severe hypercalcemia (8)(9)(10). Previously reported asymptomatic PHP cases of giant parathyroid adenomas showed a weight under 31 g (11,12).…”