The measurement of PTH in needle wash-out obtained in aspirates of neck lesions has been validated in non-pregnant individuals and has shown high specificity (95–100%) and sensitivity (91–100%) with regard to the identification of parathyroid adenomas [62,63], whereas a recent case report described the successful implementation of this technique in a pregnant woman with marked hypercalcemia [64]. Here, PTH is linked to hypercalcemia disease.