Parathyroid microadenoma as a cause of chronic intractable cough

Abstract

Primary hyperparathyroidism is most commonly caused by parathyroid adenoma. Most cases are asymptomatic or have non-specific symptoms. Infrequently, parathyroid adenomas can present with symptoms due to pressure effect on surrounding structures and are usually characteristic of giant adenomas i.e. weight ≥3 grams. We present a rare case of chronic cough caused by the adenoma, weighing merely 2 grams, due to anatomic proximity to recurrent laryngeal nerve and was treated surgically.