ABSTRACT
Introduction and objective: Fibrous dysplasia is a non-neoplastic lesion of unknown origin with one-fourth involving head and neck. The aim of this paper is to report a case of fibrous dysplasia of the maxillary sinus, describing its clinical presentation, radiological features, histopathological appearance and surgical management. Case report: 38-year-old female patient who presented with a history of fullness of the right cheek and intraoral swelling was diagnosed to have fibrous dysplasia of the maxilla with involvement of the maxillary sinus based on the radiological features. The case was managed surgically via a conventional Caldwell-Luc approach. The histopathology of the excised tissue confirmed the diagnosis of fibrous dysplasia. Conclusion: Fibrous dysplasia is a benign non-neoplastic lesion of unknown origin that rarely involves the maxillary sinus. This case report highlights the clinical, radiological and pathological features of fibrous dysplasia and its surgical management. Conventional Caldwell-Luc approach allows more exposure and ensures complete removal of the lesion.