Abstract
A 46-year-old man with a past history of retroperitoneal fibrosis was admitted with an enlarged, hard right testis. The paratesticular lesion showed heterogeneous hypoechogenicity on ultrasonography, low signal intensity on T1- and T2-weighted magnetic resonance imaging (MRI), and lack of diffusion restriction on diffusion-weighted MRI. Following steroid treatment, the paratesticular mass was decreased in size on follow-up computed tomography. The radiologic and clinical features are recognized as a manifestation of immunoglobulin G4-related sclerosing disease involving the paratesticular region and retroperitoneum.
2014 S. Karger AG, Basel
MeSH terms
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Diffusion Magnetic Resonance Imaging
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Humans
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Immunoglobulin G / metabolism*
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Magnetic Resonance Imaging
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Male
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Middle Aged
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Neoplasms, Fibrous Tissue / complications
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Neoplasms, Fibrous Tissue / immunology*
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Neoplasms, Fibrous Tissue / pathology
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Retroperitoneal Fibrosis / complications
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Retroperitoneal Fibrosis / immunology*
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Retroperitoneal Fibrosis / pathology
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Retroperitoneal Space / pathology*
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Sclerosis / complications
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Sclerosis / immunology*
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Sclerosis / pathology
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Testicular Neoplasms / complications
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Testicular Neoplasms / immunology*
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Testicular Neoplasms / pathology
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Testis / pathology*
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Tomography, X-Ray Computed
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Treatment Outcome