Primary gastric squamous cell carcinoma - a case report of diagnosis, treatment, histological findings and follow-up.

Primary squamous cell carcinoma (PSCC) of the stomach is a rare oncologic disease with a reported incidence of only 0.04%. Therefore, there are no evidence-based recommendations for treatment.

Cell proliferation and p27Kip1 expression in endophytic schneiderian papillomas.

Objective: To clarify epithelial cell proliferation and p27Kip1 expression along the stepwise histological changes from endophytic schneiderian papillomas to associated carcinomas.

Study Design: Retrospective investigation involved surgical specimens from 58 patients.

Methods: Immunohistochemical assessment involved the nuclear Ki67 antigen expressed in proliferating cells.