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Testicular Epidermoid Cyst on Diffusion-Weighted MR Imaging and ADC Map : A Case Report

Other Titles
 확산강조영상과 현상확산계수(ADC) 영상을 통한 고환 표피 낭종의 진단: 증례 보고 
 Mi Sun Kim  ;  Kyung Ah Kim  ;  Sun Hee Chang 
 Journal of the Korean Society of Magnetic Resonance in Medicine (대한자기공명의과학회지), Vol.15(2) : 154-159, 2011 
Journal Title
Journal of the Korean Society of Magnetic Resonance in Medicine(대한자기공명의과학회지)
Issue Date
Epidermoid cyst ; Testis ; Diffusion weighted imaging ; Magnetic resonance imaging (MRI)
Testicular epidermoid cyst is a rare benign tumor, accounting for 1-2% of all testicular tumors. It can be cured by organ preserving surgery, so accurate preoperative diagnosis is very important for preventing unneccessary and extensive orchiectomy. We experienced a case of an 18-year-old man who presented with a painless lump in his right testis. The testicular mass showed an onion ring sign on ultrasonography. Computed tomography images showed the mass as a low attenuating lesion with curvilinear calcification. On Magnetic resonance imaging (MRI), the mass appeared as high signal intensity with internal alternating low signal intensity patterns on T2-weighted images. The mass was displayed as having homogeneous high signal intensity on diffusion magnetic resonance imaging and showed lower apparent diffusion coefficient values than normal testis parenchyma, similar to intracranial epidermoid cysts. Testicular MRI with DWI and ADC map can help to more accurately diagnose testicular epidermoid cyst.
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1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyung Ah(김경아)
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