, Volume 37, Issue 8, pp 840-843
Date: 22 Jun 2007

Utility of MR imaging in cat-scratch neuroretinitis

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About 80% of cat-scratch disease (CSD) infections occur in children, and CSD neuroretinitis (optic neuropathy with retinal exudates in a “macular star” pattern) mostly occurs in children and young adults. A recent study suggested that CSD optic neuropathy has specific features on MR imaging. However, MR imaging findings in CSD neuroretinitis are not well described in the pediatric literature. We present a patient with CSD neuroretinitis in whom these specific MR imaging features preceded the macular star, a funduscopic finding strongly suggestive of neuroretinitis. This case demonstrates how knowledge of these features is important in the appropriate diagnostic work-up of optic neuropathy. MR imaging also incidentally revealed neuritis of another cranial nerve in the auditory canal—a rare manifestation of CSD.

Presented as a poster at the 2007 Annual Meeting of the Association for Research in Vision and Ophthalmology, Ft. Lauderdale, Fla., May 2007.