Abstract Similar Articles
Parathyroid adenomas are the commonest cause of primary hyperparathyroidism. About 10 percent of the parathyroid adenomas are ectopic in location. Cystic degeneration in parathyroid adenomas is seen in 4% of the cases and represents 1-2% of the cases with primary hyperparathyroidism. Hence, the combination of parathyroid cysts, which are both ectopic and functional is extremely rare. Functional parathyroid cysts can be either silent or associated with a wide range of clinical symptoms. We present two cases of functional mediastinal parathyroid cysts, one with and the other without clinical manifestations.