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Comparison of Tuberculous and Pyogenic Epididymal Abscesses

Clinical, Gray-Scale Sonographic, and Color Doppler Sonographic Features

Dal Mo Yang1, Myung Hwan Yoon1, Hak Soo Kim1, Wook Jin1, Hee Young Hwang1, Hyung Sik Kim1, Seung Phil Cho2 and Dae Sung Kim3

1 Department of Radiology, Gachon Medical College, Gil Medical Center, 1198, Guwol-Dong, Namdong-Gu, Inchon, 405-760, South Korea.
2 Department of Urology, Gachon Medical College Gil Medical Center, Inchon, 405-760, South Korea.
3 Department of Preventive Medicine, Gachon Medical College, Gil Medical Center, Inchon, 405-760, South Korea.



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  		Fig. 1. —52-year-old man with tuberculous epididymal abscess and 4-month history of non-tender scrotal swelling. Longitudinal color Doppler sonogram shows large abscess measuring approximately 1.6 cm in diameter with heterogeneously low echogenicity in epididymal tail, with few spotty flow signals in peripheral portion of abscess (large arrows). Epididymal abscess is surrounded by hyperechoic rim (small arrows).

 


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  		Fig. 2. —63-year-old man with tuberculous epididymal abscess and 15-day history of painful scrotal swelling. Longitudinal power Doppler sonogram shows heterogeneously hypoechoic abscess measuring about 1.1 cm in epididymal body. Few flow signals are seen in peripheral portion of epididymal abscess (arrows). Note heterogeneous echogenicity with ill-defined hypoechoic areas and slightly increased flow signals in testis (T).

 


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  		Fig. 3. —34-year-old man with pyogenic epididymal abscess and 3-day history of painful scrotal swelling. Longitudinal power Doppler sonogram shows heterogeneously hypoechoic abscess with peripheral hyperechoic rim in epididymal tail. Increased flow signals are seen in peripheral portion of abscess.

 


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  		Fig. 4. —49-year-old man with pyogenic epididymal abscess and 4-day history of painful scrotal swelling. Longitudinal power Doppler sonogram shows small heterogeneously hypoechoic abscess measuring approximately 0.6 cm in diameter with peripheral hyperechoic rim (arrows) in epididymal tail. Moderate flow signals are seen in peripheral portion of abscess.

 

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