Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comparative Study
. 1982 Sep 1;50(5):912-8.
doi: 10.1002/1097-0142(19820901)50:5<912::aid-cncr2820500519>3.0.co;2-u.

Immunohistochemical demonstration of S100 protein in malignant melanoma and pigmented nevus, and its diagnostic application

Comparative Study

Immunohistochemical demonstration of S100 protein in malignant melanoma and pigmented nevus, and its diagnostic application

T Nakajima et al. Cancer. .

Abstract

The presence of nervous tissue specific S100 protein was studied immunohistochemically in 47 cases of malignant melanoma and 25 pigmented nevi of various types of peroxidase-antiperoxidase immunoenzyme method on routine paraffin sections of the surgical specimens. Of 47 cases of malignant melanoma, 44 were positively stained for S100 protein. The intensity of S100 protein immunostaining was suggested to be inversely proportional to the amount of melanin pigment. In ten cases of 12 amelanotic melanomas, the immunoreaction for S100 protein in tumor cells was stronger than that of normal Bergmann glial cell in human cerebellum. Intradermal nevi and juvenile melanomas were strongly positive for S100 protein, but blue nevi contained little or no S100 protein. Our results suggest that S100 protein is widely distributed among melanotic tumors and is also a very useful diagnostic indicator for malignant melanoma, especially of the amelanotic type.

PubMed Disclaimer

Publication types

LinkOut - more resources