Epididymal cyst

• Epididymal cysts are less common than spermatoceles and are indistinguishable from the latter at US.
• Epididymal cysts contain clear serous fluid and may arise throughout the epididymis (spermatoceles almost always arise in the epididymal head).
• An increased incidence of epididymal cysts has been reported in boys who are exposed in utero to diethylstilbestrol.
• Although epididymal head cysts cannot be differentiated from spermatoceles, they usually are not clinically relevant.

Patient #1

Patient #2: Ultrasound images demonstrate a large epididymal cyst

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  Large epididymal cyst
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  Large epididymal cyst
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  Large epididymal cyst

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