Final answer:
The most common intraoral location of squamous cell carcinoma is the lateral tongue. This type of carcinoma can be more aggressive than skin lesions and often requires surgical or radiation treatment.
Step-by-step explanation:
The most common intraoral location of squamous cell carcinoma (SCC) is the lateral tongue. SCC can appear as lesions not only in the skin but also on the mucosal surfaces such as the oral cavity. Although SCC is frequently found on the skin, particularly in areas susceptible to long-term sun exposure like the scalp, ears, and hands, its occurrence inside the mouth tends to be more aggressive and dangerous due to the tissue characteristic and the possibility of metastasis. The lateral tongue surface is an area prone to repetitive trauma and irritation, which can be a predisposing factor for the development of cancer. Treatment for SCC often involves surgery or radiation to remove or shrink the tumors.