Cholesterol granuloma (CG) is a foreign body reaction to the deposition and inadequate drainage of cholesterol crystals that are frequently found in association with chronic diseases. The clinical symptoms are non-specific. The differential diagnosis of CG includes cysts, mucocoeles and neoplasms. Radiological and histopathological findings are essential for diagnosis of CG. In this report it is aimed to introduce a case of CG in antrochoanal polyp with its clinical and histopathological findings.