“…In contrast, after skin grafts, most cytologic and histologic reports, with some cases followed for more than 20 years, have shown that the neovaginal epithelium does not completely lose its original histologic nature and retains the features of keratinizing squamous epithelium since there is persistence of extensive keratinization. 11,13,17,20,22,26 However, a few cases, all with follow-up of > 10 years, have shown a decrease in keratinization, probably because in the new environment the stratum corneum is not subjected to stimuli, such as pressure and abrasions. 11,13 Primary carcinoma arising in artificial vaginas 3-19 years after vaginal reconstruction have been reported: squamous cell carcinoma after skin grafts 3,9,15,18,19,25 and adenocarcinoma after vaginal reconstruction with tissue from the small intestine.…”