Surgical Treatment of Parapharyngeal Space Salivary Gland Tumor.

INTRODUCTION: Parapharyngeal space salivary gland tumors are very rare. The authors sought to examine the clinical features, treatment methods, and treatment results of parapharyngeal space salivary gland tumors in our hospital. METHODS: The authors retrospectively enrolled 15 patients who were finally diagnosed as having parapharyngeal space salivary gland tumors from January 2010 to January 2021. RESULTS: All parapharyngeal space salivary gland tumors arose from the prestyloid compartment. This study included 3 males and 12 females. The main symptoms were incidental diagnosis during imaging tests, followed by neck discomfort, oral mass, neck mass, and headache. Surgical methods for parapharyngeal space salivary gland tumors were performed in the following order: transcervical approach (n = 10), transcervical-parotid approach (n = 3), transoral approach (n = 1), and transparotid approach (n = 1). Pleomorphic adenoma was the most common tumor among parapharyngeal space salivary gland tumors. CONCLUSIONS: In the surgery of parapharyngeal space salivary gland tumors, a transcervical or transcervical-parotid approach was mainly used by predicting the origin site through radiologic examinations.

Intraoperative Handheld Digital X-ray for Assessment of Intracochlear Positioning of Electrode Arrays in Recipients of Cochlear Implants.

Objectives: This study aims to evaluate the practicality of handheld digital X-ray in determining the position of the electrode array following Cochlear implantation (CI). Methods: A retrospective study was conducted involving 11 patients (12 ears) who underwent intraoperative imaging via handheld X-ray (MINE ALNU®, OTOM, Gwangju, South Korea) post-CI between December 2021 and January 2023. Immediate confirmation of the correct electrode array placement in the cochlea was achieved, with subsequent comparisons made to C-arm image and postoperative transorbital view X-ray. Results: Rapid intraoperative imaging was achieved in all instances. The electrode types used included 9 Nucleus slim modiolar electrodes, 1 Nucleus contour electrode, and 2 Medel flex26 electrodes. A malpositioned electrode array was detected in one patient. The handheld digital X-ray also adeptly visualized the electrodes implanted in pediatric patients. Conclusions: The use of intraoperative handheld digital X-ray using MINE ALNU® proves to be a safe, efficient, straightforward, and reliable method for immediate identification of an inserted electrode array. It has potential to replace the traditional C-arm X-ray for verifying electrode positioning in the operating room.

Hypertrophic Pachymeningitis of the Internal Auditory Canal Induced by a Labyrinthine Fistula Complicated With Cholesteatoma.

Hypertrophic pachymeningitis (HP) is defined by inflammation and thickening of the dura mater, and the etiologic factors are idiopathic or secondary to various conditions. To date, HP in the internal auditory canal (IAC) has rarely been reported. There have only been 3 reports of HP in the IAC. Magnetic resonance imaging showed enhancement of along the IAC and vestibule. After antibiotic treatment, enhancement was reduced with visible seventh and eighth nerves. The patient underwent tympanomastoidectomy. To our knowledge, this is the first case of HP associated with a labyrinth fistula complicated by cholesteatoma. We report MRI image with literatures.