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We treated two cases of tumors arising from accessory parotid gland and Stensen's duct. The first case was a 30-year-old female with a 10-year history of right cheek tumor. Sialo-CT findings suggested that the tumor detached from the parotid gland and enhancement around the tumor was not remarkable. Fine needle aspiration cytology demonstrated normal salivary gland cells. Therefore, this case was diagnosed as accessory parotid gland tumor and extirpation surgery was performed. The other case was an 86-year-old female with a 4 year history of right cheek tumor. Sialography demonstrated obstruction of Stensen's duct. Based on the surgical specimen, this case was diagnosed as tumor arising from Stensen's duct. We discuss the management of the facial nerve during resection of these tumors.

Anterior inferior cerebellar artery (AICA) syndrome involves sudden hearing loss, vertigo, and several neurological symptoms and is being reported with increasing frequency due to diagnostic adavances. Herein, we describe 3 cases of anterior inferior cerebellar artery syndrome. Case 1 was a 67-year-old woman with sudden onset of vertigo. Initially, we treated her for sudden deafness with vertigo. Hearing loss improved almost completely by steroid and prostaglandin E1 administration. However, MRI demonstrated cerebellopontine infarction. Case 2 was a 53-year-old woman with hypertension and hyperlipidemia. She had dizziness and headache. CT and MRI demonstrated infarction of the cerebellum and brain stem. Hearing loss and dizziness were improved by steroid administration, control of blood pressure, and antithrombus therapy. She did not have cerebellar symptoms. Case 3 was a 58 year-old man with hypertension, who developed vertigo and vomiting. He demonstrated also hearing loss and ataxia. MRI demonstrated infarction of the cerebellum and brain stem, and otoneurological examination supported these findings. Vertigo and ataxia improved considerably. However, hearing loss was not completely improved. Steroid and prostaglandin E1 administration may improve hearing loss of anterior inferior cerebellar artery syndrome.

Salivary duct carcinoma is an uncommon tumor, and mainly originates in the parotid gland. We treated two patients with salivary duct carcinoma in the submandibular gland. One patient was a 60-year-old male who complained of right submandibular swelling. Submandibular sialoadenectomy, right neck dissection and postoperative radiation were performed. Four months later, multiple bone metastase were found. The other patient was a 40-year-old male who complained of right submandibular and bilateral cervical swelling. Submandibular sialoadenectomy, bilateral neck dissection, and postoperative radiation and chemotherapy were performed. Six months later, skin metastasis was found. Histologically, both were diagnosed as salivary duct carcinoma based on the presence of cribriform pattern and comedo necrosis. Preoperative diagnosis of salivary duct carcinoma is difficult. This carcinoma resists combined therapy and has a poor prognosis.

A 65-year-old female was referred to Kyoto Pref ectural University of Medicine with a tumorous lesion revealed by nasopharyngeal fiberscopy on June 7th, 1999. Angiography of the carotid artery revealed a large aneurysm in parapharyngeal space that resulted in right otitis media with effusion. Ligation and embolization with GDcoil of the aneurysm was performed by the Neurosurgery Department of Kyoto Pref ectural University of Medicine.Interventional radiology was useful for treating a case of aneurysm in the Parapharyngeal space.