Sphenoid sinus osteoma at the sella turcica associated with empty sella: CT and MR imaging findings.
A 50-year-old woman presented with intermittent headache for the past few years. A paranasal sinus CT scan showed a diffusely calcified lesion at the roof of the sphenoid sinus and sella turcica, with the sellar floor bony cortex involved. Empty sella was noted. MR imaging revealed a soft-tissue lesion with low signal intensity on T1-weighted images, high signal intensity on T2-weighted images, and heterogeneous enhancement on postgadolinium images. Histologic examination revealed an osteoma composed of mature lamellar bone.
Chen
C Y
CY
Department of Radiology, School of Medicine, Taipei Medical University, Taipei, Taiwan, Republic of China.
Ying
S H
SH
Yao
M S
MS
Chiu
W T
WT
Chan
W P
WP
D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D010016:Osteoma / Q000175:diagnosis*; D010255:Paranasal Sinus Neoplasms / Q000175:diagnosis*; D012658:Sella Turcica / Q000000981:diagnostic imaging* / Q000473:pathology*; D013101:Sphenoid Sinus / Q000000981:diagnostic imaging* / Q000473:pathology*; D014057:Tomography, X-Ray Computed