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.
Three cases of nonsyndromic trigonocephaly associated with (A) isolated tonsillar herniation with a normal ventricle size; (B) tonsillar herniation coupled to moderate supratentorial ventricular dilation; and (C) cervical spine syringomyelia.
