Solar keratosis: a histochemical study on the distribution of SH groups and SS bonds
Aricò, M.; Pravatà, G.; Noto, G.; Pinto, G.
Giornale Italiano di Dermatologia e Venereologia Organo Ufficiale Societa Italiana di Dermatologia e Sifilografia 125(11): 493-496
1990
ISSN/ISBN: 0392-0488 PMID: 1708351 Document Number: 355761
The distribution of free SH groups and SS covalent linkages in hypertrophic, atrophic, acantholytic, bowenoid, pigmented solar keratoses (SK) and squamous cell carcinoma was evaluated. The sulphydryl groups were present in cytoplasms with a granular pattern and nucleoli mainly in atrophic, hypertrophic and bowenoid SK; the distribution of SS linkages appeared as a brilliant ovoid fluorescence localized in living layers, due to individually keratinized cells in SK. Similar results were found in squamous cell carcinoma. Our results agree with the opinion which considers SK as in situ carcinomas.