Fig. 2. A 5-year-old boy with acute appendicitis complicated by perforation.
Grey-scale ultrasonography shows a shadowing appendicolith (callipers) and the presence of phlegmonous changes around it.
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.