骨髓瘤是浆细胞恶性增生引起的肿瘤性疾病,口腔表现比较少见,主要发生在颌骨,而以牙龈及舌病变为主要症状,首先就诊于口腔科者国内尚未见报导,我们曾遇到两例,报告如下:例1 男,66岁,近1个月来牙龈肿胀增生,进食时局部疼痛,牙齿松动,身体逐渐衰弱。检查:上下 Myeloma is a neoplastic disease caused by malignant proliferation of plasma cells. The oral performance is relatively rare and mainly occurs in the jaws. The main symptoms are gingival and tongue lesions. The first visit to dentistry has not been reported in the country. We have encountered two reports. Cases are reported as follows: Case 1 Male, 66 years old, had swelling and hyperplasia of gums in the past 1 month, local pain during eating, loose teeth, and gradually weakened body. Check: up and down