Facial nerve preservation in total parotidectomy for parotid tumors: a review of 27 cases.

We conducted a study to evaluate the success of facial nerve preservation in 27 adults with a parotid tumor who underwent total parotidectomy. Of this group, 11 patients had a malignant tumor, 10 had a recurrent benign tumor, and 6 had a primary benign tumor. Preoperatively, 7 patients had facial nerve paresis.

Effective hepatic cryoablation: does it enhance tumor dissemination?

This experimental study was designed to investigate the risk of tumor dissemination by hepatic cryosurgery and to determine the final subzero temperature required for effective hepatic tumor cryoablation. Although cryosurgery is now one of the established modalities for the treatment of some liver tumors and has been used for two decades, controversy remains regarding the final subzero temperature needed to destroy tumor masses. One experimental report has indicated that hepatic cryosurgery may enhance tumor dissemination.