U DÂY THẦN KINH VII TRONG TUYẾN MANG TAI: BÁO CÁO CA LÂM SÀNG

Abstract

Facial nerve schwannoma is a rare condition, and the occurrence of tumor within the parotid gland is even rarer. Due to nonspecific symptoms, preoperative diagnosis of these tumors poses significant challenges. Clinically, patients often do not exhibit any facial nerve dysfunction before surgery, while postoperative facial paralysis is common. Therefore, it is crucial for surgeons to forewarn patients about this complication. We report a clinical case of a 41-year-old female diagnosed with left intraparotid facial nerve schwannoma. Ultrasonography and FNA suggested a pleomorphic adenoma, but intraoperative evaluation and postoperative histopathology confirmed the diagnosis of a facial nerve schwannoma. Intraparotid facial nerve schwannoma is rare condition. Preoperative diagnosis is challenging, and definitive diagnosis is often achieved intraoperatively and through postoperative histopathological examination. The gold standard for treatment remains surgical excision of the tumor and maximum preservation of the facial nerve.