Clinical analysis of second primary gingival squamous cell carcinoma after radiotherapy

Oral cancer has become the sixth most common cancer in the world [1]. In 2015, approximately 45,780 new cases of cancer in the oral cavity and pharynx were reported in the United States. Of these, 8650 died due to cancer-related death [2]. Tobacco abuse and alcohol abuse have been identified as the most important risk factors for oral cancers, especially squamous cell carcinoma [3], as well as DNA oncogenic viruses and habits, such as chewing betel nut [4]. Among those patients with oral squamous cell carcinoma, a fraction was observed to have a history of radiotherapy in head and neck region.
Source: Oral Oncology - Category: Cancer & Oncology Authors: Source Type: research