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.
Microscopic findings of the biopsy specimen. A. Cellularity of the specimen is higher than that of a neurofibroma and the Antoni A areas of a schwannoma (×40). B. Some spindle cells show nuclear enlargement and hyperchromasia (×400). Mitotic figures are not observed. C. Numerous spindle cells are S-100 positive on immunohistochemistry (×400). D. The Ki-67 labeling index is approximately 6.4% (×400).
