RET and Hypercalcemia: <h4>Background/objective</h4>Hypercalcemia is a common clinical manifestation of Multiple Endocrine Neoplasia 2A (MEN 2A) through primary hyperparathyroidism.The objective of this report is to describe a rare and unique case of sarcoidosis-related hypercalcemia in a patient with a history of MEN2A.<h4>Case report</h4>A 59-year-old female with past medical history of MEN2A, REarranged during Transfection mutation C609Y, diagnosed in 2007 status post-total thyroidectomy presented to the hospital with an acute abdominal pain aggravated with eating.