Basal cell adenoma in the deep portion of the parotid gland: a case report

Basal cell adenoma (BCA) is a rare, benign neoplasm that most frequently arises in the parotid gland. We treated a 54-year-old female patient with BCA that had developed in the deep portion of the left parotid gland. The patient presented with gradual facial swelling with no other symptoms. We performed a total parotidectomy to excise the mass, but we preserved the facial nerve. Histopathology revealed a well-encapsulated mass. The tumor was composed of islands of comparatively uniform, small, dark, basaloid epithelial cells in the stroma. Histologic and immunohistochemical studies concluded that the BCA tumors were mostly trabecular. Postoperatively, there was no facial nerve weakness, and the tumor did not recur during the 24-month follow-up period.

Microsurgical treatment of large acoustic neurinoma and facial nerve preservation / 中国综合临床

Objective To explore the microsurgical technique and results of the large acoustic neurinoma and the facial nerve preservation.Methods 35 cases of large acoustic neurinoma treated microsurgically were analyzed retrospectively.Results Total resection was achieved in 33 patients,subtotal in one patient and partial in one patient.The facial nerve was preserved completely in 32 cases (91.4%).One died postsurgery.Conclusion The application of microsurgical techniques and rational selection of operational approach can remarkably increase the total removal rate and facial nerve preservation rate.

Peservation of Facial Nerve Function after Acoustic Neuroma Surgery / 대한이비인후과학회지

BACKGROUND AND OBJECTIVES: Facial nerve paralysis is a visible complication following acoustic neuroma surgery. The pro-gnostic factors which predict postoperative facial nerve function after acoustic neuroma surgery were investigated. MATERIALS AND METHODS:Fifty one patients with acoustic neuroma operated with neurotological approaches from March, 1987 to May, 1997 at Seoul national university hospital were studied by retrospective medical record review. Patient groups were divided according to surgical approach which were selected on the basis of tumor location and size as well as the need for hearing preservation. They were also divided according to the extent of tumor, preoperative facial nerve function, and tumor size. Under the House-Brackmann grading system, preservation of facial nerve function for each of the groups was analyzed before the operation, immediately after the operation (7th day), and at the time of last follow up (>12 month). The mean age of patients was 49.3 years, ranging from 29 to 72 years. Spearman Correlation analysis was used for statistical evaluation. RESULTS: The extent of tumor or different surgical approaches of tumor removal, such as translabyrinthine, transotic, middle fossa, and the combined approach, did not influence on facial nerve preservation. Pre-operative and immediate postoperative facial nerve functions as well as tumor size were important prognostic factors in the long term facial nerve function. As the size of tumor increased, the long term postoperative facial nerve function became poor. CONCLUSION: Early diagnosis and surgery are required for small size tumors in order to have good facial nerve function following acoustic neuroma surgery.