Malignant Tumors of Tongue in Iranian Population

Evaluating the Clinicopathologic Parameters of Tongue Squamous Cell Carcinoma based on its Local Distribution

Background

Oral squamous cell carcinoma (OSCC) is one of the most common oral lesions and the tongue is one of the most common areas involved. The aim of this study was to evaluate the clinicopathologic feature of tongue SCCs based on its local distribution.

Materials and Methods

In this cross-sectional study, clinical data such as age, gender, location, and clinical appearance were extracted from the archives of the Oral Pathology Department, Isfahan Dental School, registered with a definitive diagnosis of tongue SCC during 2005-2019. Then, 34 specimens were selected for histopathological evaluation in a simple random way. The histopathologic slides were examined to determine the grade of tumor malignancy. The data were entered into SPSS23 software and analyzed by Chi-square, Fisher exact, One-way ANOVA, and Non-parametric tests. P value <0.05 was considered significant.

Results

Of the 275 OSCCs, 68 samples were tongue SCC. The mean age of patients was 61.7 ± 15 and 61.8% were women. The most common clinical manifestations were exophytic lesions (42.6%) and the most common site was the lateral border of the tongue (36.8%). The results did not show a significant relationship between the clinicopathologic feature including mean age (p = 0.766), gender (p = 0.338), clinical presentation (p = 0.434), grade of malignancy (p = 0.763) and location. But, among the histopathological parameters, the pattern of invasion (p = 0.047) was significantly associated with the local distribution.

Conclusion

Given that most OSCCs had moderate differentiation of malignancy, identification of clinical features is needed. Attention to the pattern of invasion and location on the tongue can be effective in determining the therapeutic approach.

Lactobacillus fermentum and Lactobacillus crispatus Do Not Have Cytotoxic Effects on HN5 Oral Squamous Cell Carcinoma Cell Line

Background

The oral environment has a very complex normal flora and a wide variety of bacteria including lactobacilli. Studies have shown oral microbial flora has important influence in the development of oral cancer. Squamous cell carcinomas account for more than 90% of cancers in oral cavity. Lactobacilli are known as one of the newest methods for the prevention and treatment of cancers. Previous studies on the effects of probiotics on oral cancer cells are very limited, and only two species of Lactobacillus which are not present in the normal oral microflora have been studied. Due to the unknown effects of lactobacilli on oral cancer, this study aimed to investigate the effect of two species of lactobacilli of oral cavity on oral cancer cells.

Methods and Materials

The effects of the supernatant of two lactobacilli, namely, fermentum and crispatus were studied on HN5-cancer cells. The MTT method was used to study the effects of lactobacilli on inhibition of cancer cell growth.

Results

The results showed that these lactobacilli do not prevent the progression of oral cancer cells. Moreover, the results showed that the acidic medium had the most effect on reducing the growth of oral cancer cells.

Conclusion

Due to the different effects of lactobacilli on various cancer types, the effects of two Lactobacillus crispatus and Lactobacillus fermentum on other oral cancer cell lines may be different from what has been reported in this study.

Bilateral squamous cell carcinoma of buccal mucosa in a young adult man: A case presentation with review of literature

The control of oral squamous cell carcinoma (SCC) is difficult even after treatment because it has a tendency to multiple primary carcinomas. The incidence of second primary neoplasm in the head and neck region cannot be forecasted reliably. The purpose of this report is to describe the clinicopathological characteristics of a unique case of bilateral buccal mucosal SCC in a 35-year-old male and to determine whether any associated risk factors are present.