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.
Mural cholesteatoma. Axial (A) and coronal (B) HRCT scans show the shell of the cholesteatoma in the epitympanum (black arrow) and the automastoidectomy cavity (thick arrow) without a history of surgery. Note the complete erosion of the ossicles, the fistula of the horizontal semicircular canal (dashed black arrow), and the wall erosion of the tympanic segment of the facial nerve canal (white arrow).
