Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
High‐frequency (12 MHz) Doppler ultrasound images of testicular epidermoid cysts from two 17‐year‐old pubertal boys. (A) The typical onion ring appearance presentation of a solid mass surrounded by concentric rings of hypo‐ and hyperechogenicity. (B) Another epidermoid cyst characterized by a particularly calcific margin that generates an evident posterior shadow cone. Scattered microlithiasis is also visible
