Quiste simple yuxtatiroídeo: análisis del posible origen de la lesión / Simple juxtathyroid cyst: analysis of the possible origin of the injury

ABSTRACT

We report a 34 years old female who presented a simple juxtathyroid cyst. Its content was translucent with a mPTH concentration 30 higher than in blood. This finding lead to the suspicion of a parathyroid cyst; however there were no laboratory evidence of hyperparathyroidism. Two years later and after repeated needle drainages, a surgical cystectomy was made. The immunohistochemical study of the samples was intensely positive for synaptophysis, a parathyroid tissue marker. Surprisingly, thyroglobulin was also found in some cyst wall cells