title: Computed tomography findings of an unusual maxillary sinus mass: brown tumor due to tertiary hyperparathyroidism.
abstract: Brown tumor is a non-neoplastic bone lesion that develops secondary to hyperparathyroidism and it is very rare in the maxillofacial region. We report the case of a 59-year-old man who presented with pain and a swelling in the left cheek. Computed tomography (CT) demonstrated an expansile and radioluscent lesion in the left maxillary sinus. Incisional biopsy was performed, and the diagnosis was Brown tumor. Brown tumor must be considered in the differential diagnosis of expansile lesions of maxillary sinus.
authors.affiliation: Department of Radiology, Dokuz Eylul University, School of Medicine, Izmir, Turkey.
authors.forename: Canan
authors.initials: C
authors.lastname: Altay
authors.affiliation: Department of Radiology, Izmir Atatürk Research and Training Hospital, Izmir, Turkey.
authors.forename: Nezahat
authors.initials: N
authors.lastname: Erdoğan
authors.affiliation: Department of Otorhinolaryngology, Izmir Atatürk Research and Training Hospital, Izmir, Turkey.
authors.forename: Erdem
authors.initials: E
authors.lastname: Eren
authors.affiliation: Department of Radiology, Izmir Atatürk Research and Training Hospital, Izmir, Turkey.
authors.forename: Sedat
authors.initials: S
authors.lastname: Altay
authors.affiliation: Department of Radiology, Izmir Atatürk Research and Training Hospital, Izmir, Turkey.
authors.forename: Sebnem
authors.initials: S
authors.lastname: Karasu
authors.affiliation: Department of Radiology, Izmir Atatürk Research and Training Hospital, Izmir, Turkey.
authors.forename: Engin
authors.initials: E
authors.lastname: Uluç
keywords: Brown tumor; computed tomography; hyperprathroidism; maxillary sinus