Giant cell tumor of the mandible.

A 53-year-old woman presented with left mandibular area pain, trismus, and facial numbness that had persisted for 4 years. Physical examination revealed a 3×5 cm, hard, non-tender, and round mass on the left mandibular area. Computed tomography and magnetic resonance imaging revealed an expansile tumor involving the left mandibular ramus and temporomandibular joint area with bone destruction, extending to the base of middle cranial fossa and left zygomatic bone.

Feasibility of transoral lateral oropharyngectomy using a robotic surgical system for tonsillar cancer.

Conventional surgical approaches for tonsillar carcinomas have a great risk for developing treatment-related morbidity. To minimize this morbidity, transoral lateral oropharyngectomy (TLO) using the robotic surgical system was performed, and the efficacy and feasibility of this procedure was evaluated. TLO was performed using the da Vinci surgical robot (Intuitive Surgical, Inc.

Clinical presentation and management of jugular foramen paraganglioma.

Objectives: Jugular foramen paraganglioma is a locally invasive, benign tumor, which grow slowly and causes various symptoms such as pulsatile tinnitus and low cranial nerve palsy. Complete surgical resection is regarded as the ideal management of these tumors. The goal of this study is to identify the clinical characteristics and most effective surgical approach for jugular foramen paraganglioma.

Transoral robotic surgery (TORS) in laryngeal and hypopharyngeal cancer.

Objectives: The current trend in managing laryngeal and hypopharyngeal cancer is to perform organ preservation therapy, which improves quality of life and decreases treatment-related morbidity. Transoral robotic surgery (TORS) can overcome the limit of "line of sight" often met in classic transoral procedure. We utilized a robotic surgical system to evaluate the feasibility and oncologic safety of transoral partial pharyngectomy and laryngectomy.

Correlation between enhanced MRI and surgical findings in herpes zoster oticus.

Conclusion: This study demonstrates good correlation between enhanced MRI and surgical findings.

Objectives: This study investigated the reliability of enhanced magnetic resonance imaging (MRI) to make a surgical decision on the strategy for facial nerve decompression in herpes zoster oticus, by determining the degree of correlation between contrast enhancement in MRI and the pathologic change in the facial nerve.

Subjects And Methods: This retrospective study of 13 patients, who underwent facial nerve decompression with herpes zoster oticus, was designed to compare gadolinium-enhanced segment of facial nerve on MRI and the pathologically changed segment confirmed by surgical exploration, grouping them by the timing of operation after onset of facial paralysis.