- Ghada El-Hajj Fuleihan, MD, MPH
Ghada El-Hajj Fuleihan, MD, MPH
- Professor of Medicine
- American University of Beirut Medical Center, Lebanon
Primary hyperparathyroidism is usually caused by a parathyroid adenoma, occasionally by primary parathyroid hyperplasia, and rarely by a parathyroid cyst or parathyroid carcinoma. Parathyroid cysts are rare lesions of the neck or mediastinum, first described in 1880, with an estimated 300 cases reported in the literature since [1-6]. In a review of 6621 patients who had neck ultrasound investigations performed at a single center from 2003 to 2007 (mainly for evaluation of thyroid diseases), a parathyroid cyst was diagnosed in five cases . Microcysts of the parathyroid gland are primarily found in aging glands, often incidentally noted on autopsy . Generally, they have little clinical significance. Macrocysts of the parathyroid gland are larger than 1 cm, and these require clinical investigation.
This topic will provide an overview of parathyroid cysts. Other aspects of primary hyperparathyroidism are discussed elsewhere.
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