Epidermoid cyst of the testis: An atypical sonographic appearance
Journal
Journal of clinical ultrasound : JCU
Journal Volume
44
Journal Issue
7
Date Issued
2016-09
Author(s)
Chen, Shu-Ting
Chiou, Hong-Jen
Pan, Chin-Chen
Shen, Shu-Huei
Chou, Yi-Hong
Tiu, Chui-Mei
Wang, Hsin-Kai
Lai, Yi-Chen
Lin, Yung-Hui
Chang, Cheng-Yen
Abstract
Epidermoid cysts are rare. They represent the most common benign tumor of the testis. The sonographic appearances of testicular epidermoid cysts usually include avascular, mostly lamellated, heterogeneous internal echotexture, with hypoechoic and hyperechoic concentric rings, accounting for the typical onion-ring appearance. On MRI, epidermoid cysts show a low-signal-intensity center, with internal concentric rings of alternating high- and low-signal intensity on T2-weighted images, which correlates with the onion-ring appearance. We report a patient with testicular epidermoid cyst with atypical ultrasound and MRI appearances that led to the erroneous initial diagnosis of "burned-out" tumor. © 2016 Wiley Periodicals, Inc. J Clin Ultrasound 44:448-451, 2016.
Subjects
MRI; burned-out tumor; epidermoid cyst; testis; ultrasound
SDGs
Type
journal article