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AJNR Am J Neuroradiol. 2008 Mar;29(3):550-1. doi: 10.3174/ajnr.A0935. Epub 2008 Jan 9.

Sphenoid sinus osteoma at the sella turcica associated with empty sella: CT and MR imaging findings.

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  • 1Department of Radiology, School of Medicine, Taipei Medical University, Taipei, Taiwan, Republic of China.



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.

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