Progressive swelling and radiopaque mass in maxillary sinus: formation of stone.

Although radiopaque lesions located in the maxillary sinus are rare, differential diagnosis should include a number of pathologies. Formation of stone, namely "antrolith" in the paranasal sinuses is a very rare phenomenon and it should be considered in the differential diagnosis, as it is usually located in the maxillary sinus. In this article, we present a 47-year-old male case with unilateral chronic sinusitis for a long time and calcification in maxillary sinus in the light of clinical/radiographic findings of the lesion and treatment strategy.