تومور نادر فيبروهيستيوسيتوم سينوس هاي اطراف بيني و نقش آندوسكوپي ترانس نازال در درمان آن

Benign fibrous histiocytoma (BFH) is a mass rarely occurs in nose and paranasal sinuses. However, nose and paranasal sinuses are the most common sites in head and neck areas to develop BFH of which the most important manifestations are nasal obstruction and mass. A patient was admitted with the nasal discharge and obstruction .He did not respond to antibiotic treatment. A big mass in the left maxillary sinus was diagnosed on CT scan and excised enbloc with transnasal endoscopy. Pathologist reported BFH. Sinonasal polyps and masses must be considered as the differential diagnosis of BFH. Since excellent exposure of tumor and lamina papyracea, transnasal endoscopy with transnasal approach is an appropriate method to excise the mass for mass excision without cutaneous incision .