一、机体的免疫状态和肿瘤发病的关系 1、人的免疫力与年龄相关某些肿瘤的发生和年龄密切相关,如非州颌骨淋巴瘤是非洲常见的儿童肉廇,急性白血病多发生于儿童时期。口腔最常见的恶性肿瘤——鳞癌,多见于中年以上的老年人。青壮年时期肿瘤的发病率相对减少。这是由于青壮年时期免疫系统发育最完善,机体的免疫能力处 First, the body’s immune status and the relationship between the incidence of tumors 1. Human immunity and age-related tumor occurrence and age are closely related, such as non-state jaw lymphoma is common in Africa, children with meat, acute leukemia occurs mostly in Childhood. The most common malignant tumor of the oral cavity, squamous cell carcinoma, is more common in middle-aged and older people. The incidence of tumors in young adults is relatively reduced. This is due to the most complete development of the immune system in the young adults and the body’s immunity.