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American Journal of Neuroradiology 26:2117-2121, September 2005
© 2005 American Society of Neuroradiology

Case Report
HEAD AND NECK

Atypical Midface Tumor Complicating Nevus of Ota

René Patzwahla, Klara Landaua and Spyros S. Kolliasa

a Institute of Neuroradiology and the Department of Ophthalmology, University Hospital of Zürich, Zürich, Switzerland

Address correspondence to Spyros S. Kollias, the Institute of Neuroradiology, University Hospital of Zürich, Frauenklinikstrasse 10, 8091, Zürich, Switzerland

Summary: In the differential diagnosis of midface masses, the nevus of Ota (also called oculodermal melanocytosis) is a rare entity. We present a case of a young white man, who lost his left eye function by progression of a melanocytotic lesion involving the ophthalmic (VI) and maxillary (VII) divisions of the trigeminal nerve. The time course, distribution along the trigeminal nerve, and characteristic MR signal intensities of the lesion, in correlation with the clinical, ophthalmological, and dermatological findings, point to the correct diagnosis.






Copyright © 2008 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X