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"Prominent ear sign" on diffusion-weighted magnetic resonance imaging in relapsing polychondritis
Masatomo Kuwabara1, Taro Shimono, Mami Toyomasu
1Department of Radiology, Kinki University School of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, 589-8511, Japan. kuwabara@radiol.med.kindai.ac.jp
Abstract:
Relapsing polychondritis is a rare autoimmune disease characterized by recurrent inflammation of cartilage in multiple sites of the body, including the auricles. Central nervous system involvement appears rare. We encountered a case of relapsing polychondritis with encephalitis that could be diagnosed by the unique appearance of the auricle with signal hyperintensity on diffusion-weighted magnetic resonance imaging.
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