Brown tumor of the sphenoid sinus in a patient with secondary hyperparathyroidism: CT and MR imaging findings.
We present a case of brown tumor of the sphenoid sinus in a patient with secondary hyperparathyroidism. CT showed an expansile soft-tissue attenuation mass centered in the sphenoid sinus. CT at bone window setting demonstrated expansile, lytic change and remodeling of the surrounding bone. On MR imaging, the lesion showed iso-intensity to gray matter on T1-weighted images and heterogeneous hyperintensity on T2-weighted images, and showed intense enhancement. The extent of the lesion and its relationship to the surrounding structures were best evaluated by CT and MR imaging.
Takeshita
Tohru
T
Department of Radiology, Teikyo University School of Medicine, Ichihara Hospital, 3426-3 Anesaki, Ichihara, Chiba 299-0111, JAPAN.
Tanaka
Hiroko
H
Harasawa
Arimi
A
Kaminaga
Tatsuro
T
Imamura
Tetsuo
T
Furui
Shigeru
S
D016723:Bone Remodeling; D003287:Contrast Media; D005260:Female; D019786:Gadolinium DTPA; D006101:Granuloma, Giant Cell / Q000209:etiology*; D006801:Humans; D006962:Hyperparathyroidism, Secondary / Q000150:complications*; D007089:Image Enhancement; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D010002:Osteitis Fibrosa Cystica / Q000209:etiology*; D010254:Paranasal Sinus Diseases / Q000209:etiology*; D013101:Sphenoid Sinus / Q000473:pathology*; D014057:Tomography, X-Ray Computed
D003287:Contrast Media; D019786:Gadolinium DTPA