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MR Features of Intraocular Ectopic Lacrimal Tissue

J.Y. Junga, J.H. Kima, S.T. Kima, H.J. Kima and Y.-C. Weona

a From the Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea


Figure 1
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  		Fig 1. A, Precontrast axial orbital CT revealed a soft tissue attenuation ovoid mass in the superolateral portion of right eye.

B, Postcontrast axial orbital CT scan showed intense enhancement of an ovoid mass. Swelling in soft tissue around right preseptal area and ipsilateral lacrimal gland suggested orbital cellulitis with lacrimal adenitis.


Figure 2
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  		Fig 2. T1- and T2-weighted MR images revealed a circumscribed ringlike mass in superolateral aspect of right eye. The central portion of the mass was low signal intensity relative to vitreous on coronal T1WI (A) and high signal intensity on T2WI (B). The peripheral portion of mass revealed slightly high signal intensity on T1WI and low signal intensity on T2WI. Coronal gadolinium-enhanced T1WI (C) showed strong and homogenous enhancement in peripheral portion of mass in continuity with the enhancing uveal tract.


Figure 3
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  		Fig 3. Dynamic enhanced T1-weighted MR sagittal scans showed early and homogenous strong enhancement in the mass.





Copyright © 2009 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X