Parathyroid cysts are rare, often asymptomatic lesions that are frequently discovered incidentally. As a result, they are very low on, or absent from, the list of differential diagnoses of a neck mass. In cases of incidental discovery of the lesion and without associated signs or symptoms of hyperparathyroidism, PCs present a clinical diagnostic problem. Diagnosis is often made intraoperatively or postoperatively in these cases, either by frozen section of the mass or by postresection pathologic analysis. This delay is undesirable given the wide differential diagnosis and range of treatments for neck masses.
Radiology Quiz Case 1: Diagnosis. Arch Otolaryngol Head Neck Surg. 2010;136(9):926-927. doi:10.1001/archoto.2010.140-b