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  • Title: Sphenoid sinus osteoma at the sella turcica associated with empty sella: CT and MR imaging findings.
    Author: Chen CY, Ying SH, Yao MS, Chiu WT, Chan WP.
    Journal: AJNR Am J Neuroradiol; 2008 Mar; 29(3):550-1. PubMed ID: 18184833.
    Abstract:
    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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