Localized Amyloid Tumor Of The Maxillary Sinus

Amyloidoma is a tumoral deposition characterized by localized deposition of amyloid in the tissues. It is very rare in the head and neck region, especially in the maxillary sinus. A 64 years old female patient applied to our clinic with complaints of left-sided nasal obstruction and epistaxis. Endoscopic examination revealed a yellowish polypoid mass obstructing the left nasal passage. Paranasal sinus tomography revealed a tumoral mass filling the left maxillary sinus and repressing the medial wall. Biopsy was positive for amyloidosis. A complete resection of the mass was suggested for a definite diagnosis. The tumor was removed by endoscopic medial maxillectomy, which permitted total excision of the lesion. Pathology results showed amyloidosis. No other organ involvement was detected. Rectal biopsy and proteinuria were negative. Here, we present the extremely rare case having localized amyloidosis of the maxillary sinus.