AJNR, American Journal of Neuroradiology, Vol.178(3) : 743-748, 2002
OBJECTIVE. The purpose of this study is to analyze the sonographic and MR imaging
findings of testicular epidermoid cysts.
CONCLUSION. Sonographic findings of a markedly heterogeneous intratesticular mass
with or without alternating hypo- and hyperechoic layers surrounded by a hypoechoic or
echogenic rim and the absence of flow on color Doppler sonography suggest the preoperative
diagnosis of testicular epidermoid cysts. T2-weighted MR imaging findings of a high-signalintensity
mass with or without low-signal-intensity foci surrounded by a low-signal-intensity
rim and the absence of enhancement on contrast-enhanced T1-weighted MR images can
strengthen the preoperative diagnosis. These imaging findings can offer a basis for surgeons
to attempt testis-sparing surgery instead of orchiectomy.