Parathyroid tissue processing for cryopreservation

In the operating room, the parathyroid tissue to be cryopreserved is cut into 30 to 40 pieces of 2 × 2 mm with a scalpel (panel A). The fragments are suspended in ice-chilled saline solution (panel B) and drawn up in 1-mL tuberculin syringes (panel C), which are capped and labeled to identify the patient. The samples are then further processed in the laboratory before they are cryopreserved in the freezing media.