ABSTRACT
Objective To study clinical ultrasonography characteristics on parathyroid cysts , so as to avoid misdiagnosis of that in clinic . [ Methods] The ultrasonic image data on parathyroid cyst of 3 misdiagnosed cases hospitalized from June 2012 to May 2013 were retrospectively analyzed . [ Results] The foci of 3 cases were located in the dorsal area under the left lobe distal polar of thyroid , and were con-firmed by surgery and pathology .The common performance of ultrasonic images:round or oval anechoic ar-ea, clear boundary , integrity membrane , thin and smooth wall .The envelop between parathyroid cyst and thyroid presented with acute angle . [ Conclusion] In thyroid ultrasonic examination , lesions in the par-athyroid gland area , especially around the inferior pole of thyroid , should be considered to be differentiated from that of parathyroid disease .