Case report of a cystic parathyroidal adenoma with rapid growth induced by cinacalcet

Background Primary hyperparathyroidism is a rare condition of disease which can seldomly present as giant retrotrhyroideal cysts, complicating the localization of the adenoma to resect. Case presentation A 56-year old female presented with hypercalcaemia of 3.38 mmol/L (2.2–2.65 mmol/L) and a history of breast cancer. A fast growing cystic parathyroidal adenoma was diagnosed by a multimodal approach including comprehensive diagnostic imaging...