Primary cyst of the maxillary sinus manifesting ophthalmologic symptoms.

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We seldom encounter primary paranasal sinus cysts in clinical practice, and a maxillary sinus cyst is a rare occurrence indeed. Clinical symptoms usually include cheek swelling, nasal obstruction, and rhinorrhea, whereas ophthalmological symptoms are very rare.Here, we present a maxillary sinus cyst accompanied by exophthalmus and double vision in a 66-year-old woman. Computed tomography revealed a cystic lesion in the right maxillary sinus. Surgery to remove the cyst was performed under general anesthesia. Occlusive change of the maxillary sinus ostium is the general pathogenesis of a primary maxillary sinus cyst. In this case, occlusive change in the left maxillary sinus ostium was not observed at the time of surgery, however, there was a past histroy of chronic sinusitis. We surmise, therefore, that this left maxillary sinus cyst was triggered by cystic change of the maxillary sinus mucosa accompanying maxillary sinusitis.
日本鼻科学会の論文