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Focal Amyloidosis of the Orbit Presenting as a Mass: MRI and CT Features
Hasan Yerli1, Erdinc Aydin, Suat Avci
1Department of Radiology, Zubeyde Hanim Practice and Research Center, Baskent University, Izmir, Turkey.
Abstract:
Focal orbital amyloidosis is a rare entity and little is known about its magnetic resonance imaging (MRI) features. In this case report, imaging features of a case of focal orbital amyloidosis presenting as a mass have been documented together with its histopathological findings. On MRI, a well-defined mass was seen as isointense with rectus muscle on T1-weighted images and heterogeneously hypointense on T2-weighted images. Punctuate calcifications were observed on the computerized tomography (CT) examination.