口腔恶性肿瘤以口腔粘膜癌(鳞状上皮癌)最为常见,约占80%以上。多发生于40岁以上的男性。病变早期易误诊,故早期诊断尤为重要,现就有关问题简介如下。白斑与红斑 1.白斑是口腔粘膜上大小不一、形态不同的白色斑块,常见于唇、颊、舌部.表面光滑、柔软,有的粗糙不平,或呈绒毛状。白斑与癌有一定关系,但并非白斑必然发展为癌,过去视白斑为癌前病变是不 Oral malignancies are most common in oral mucosal carcinoma (squamous epithelial carcinoma), accounting for more than 80%. Occurred in men over the age of 40. The early diagnosis of lesions is often misdiagnosed, so early diagnosis is particularly important. The relevant issues are summarized below. White Spots and Erythema 1. White Spots are white patches of varying sizes and shapes on the oral mucosa, commonly found in the lips, cheeks, and tongue. The surface is smooth, soft, rough, uneven, or fluffy. White spot has a certain relationship with cancer, but it is not that leukoplakia necessarily develops into cancer. In the past, it was not considered that precancerous lesions were leukoplakia.