introduction: leukoplakia is the most common precancerous lesion of the oral mucosa and may range microscopically form benign hyperkeratosis to invasive squamous cell carcinoma. p53 is a tumor suppressor protein; whereas, proliferative cell nuclear antigen (pcna) is a proliferative marker. the aim of this study was to evaluate the immunohistochemical expressions of p53 and pcna in oral leukopla...

Background and objective:Candida albicans (C. albicans) play a significant role in oral mucosal carcinogenesis. It can be identified using various techniques in cytological smears. But, very few studies have been conducted on histopathological sections using calcofluor white M2R under fluorescent microscopy. Additionally, detection and quantification ...

purpose : to develop a guideline for the treatment of incompletely removed histopathologically documented ocular surface neoplasia (ossn) with mitomycin c (mmc). materials & methods : through an interventional case series, 17 eyes of 17 patients presented with incompletely removed ossn were treated according to a protocol using 2-3 alternate 7-day courses of mmc 0.04%. clinical recurrence was r...

Background & objective: Changes in submucosal vascularization and inflammation, determined by immunohistochemistry staining, were shown to be correlated with the development of dysplasia and invasiveness of epithelial cells in premalignant and malignant lesions. This study evaluated changes in sections routinely stained with Hematoxylin and Eosin (H&E;) in orde...

Among oral lesions, we encounter a series of malignant epithelial lesions that go through clinical and histopathologic processes in order to be diagnosed. Identifying these processes along with the etiology knowledge of these lesions is very important in prevention and early treatments. Dysplasia is the step preceding the formation of squamous cell carcinoma in lesions which have the potential ...

background: syndecan‑1 is abundant in normal tissues and reduced in squamous cell carcinomas. leukoplakia and oral submucous fibrosis (osf) are oral pre‑cancerous disorders that have potential for malignant transformation. the aim of this study was to evaluate the expression of syndecan‑1 in leukoplakia and osf and to identify its role as a reliable marker for predicting malignant changes. mate...

OBJECTIVE To describe an unusual variant of oral epithelial dysplasia and to provide an appraisal of its immunohistochemical profile. STUDY DESIGN An unusual form of epithelial dysplasia, which we have termed adenoid dysplasia, was evaluated for staining of cytokeratins AE1/AE3, vimentin, E-cadherin, and β-catenin. The immunohistochemical results were compared with those observed in moderate ...

background:   materials and methods: this was a cross-sectional study carried out among 70 samples, including 10 samples from normal healthy mucosa categorized into group 1, group 2 (30 olp), and group 3 (30 oed) samples. five sections (4 μm thick) were obtained and stained with monoclonal antibodies such as ki-67, p53, bcl-2, and bax and analyzed for number of positive cells and also for inten...

among oral lesions, we encounter a series of malignant epithelial lesions that go through clinical and histopathologic processes in order to be diagnosed. identifying these processes along with the etiology knowledge of these lesions is very important in prevention and early treatments. dysplasia is the step preceding the formation of squamous cell carcinoma in lesions which have the potential ...