Which site has the highest risk for carcinoma of the tongue?

The site with the highest risk for carcinoma of the tongue is located at the lateral border posteriorly. This area is particularly prone to the development of tongue carcinoma due to several factors. The lateral border has a rich lymphatic network, which can facilitate the spread of malignancies. Additionally, this region is often exposed to carcinogenic agents from inhaled substances and tobacco products, increasing its vulnerability to cancerous changes.

Furthermore, the lateral border of the tongue is an area where dysplastic epithelial changes can occur more frequently, which can progress to malignancy over time. Studies have shown that squamous cell carcinoma, the most common type of oral cancer, tends to occur in this specific area more than others.

In contrast, while other areas of the tongue can still develop carcinoma, they do not report the same frequency or risk factors associated with the lateral border posteriorly, further emphasizing why this location is of particular concern for oral health professionals.