Objectives: Sinonasal schwannomas account for less than 4% of head and neck schwannomas, with the primary treatment modality being surgical excision via external approaches. The aim of this report is to present a rare case of recurrent schwannoma of the ethmoid cavity involving the anterior skull base which was successfully managed with endoscopic resection. Study Design: Case report and review...

A 66-year-old man presented with fatigue and acute upper gastrointestinal bleeding (hemoglobin 92g/L). He had melena but no signs of hematemesis. Upper gastrointestinal endoscopy revealed a 35×15-mm large polypoid lesion with multiple ulcerations in the second part of the duodenum (●" Fig.1). No biopsy samples were taken due to the risk of bleeding. The diagnosis was unclear and the patient und...

BACKGROUND This study was undertaken to determine the recurrence rate for open and endoscopic surgery and the clinical prognosis of this sinonasal tumor. METHODS A systematic review of individual cases of sinonasal hemangiopericytoma was performed. A total of 97 articles were included in the study and reviewed to extract the relevant information about each case. RESULTS In all, 194 cases of...