肿瘤和瘤样病变.ppt

颌面部肿瘤和瘤样病变口腔软组织肿瘤 Tumors of the soft tissues of the oral cavityBenign disease of oral soft tissues-Epulis Malignant tumor-squamous cell carcinoma 一、良性肿瘤和瘤样病变1.鳞状细胞乳头状瘤（squamous cell papiloma)2.乳头状增生（papiliferous hyperplasia)3.血管瘤（hemangioma)4.牙龈瘤（epulis)1、鳞状细胞乳头状瘤squamous cell papiloma疣状或乳头状生长，表面灰白或淡红色，见于颊、腭、唇和舌2、乳头状增生（papiliferous hyperplasia)多发，柔软，小（直径2-4mm），无蒂的乳头状突起，常见于腭部。3、血管瘤（hemangioma)一种分化成熟的血管构成的血管畸形或良性肿瘤，无包膜，好发于面颈部皮肤。按照镜下的特征，血管瘤可以分为几型1.毛细血管型(capillary)由毛细血管组成，被纤维组织分割成小叶状。2.海绵状 (cavernous hemangioma)由血窦组成，间隔菲薄的结缔组织。3.肉芽性血管瘤（hemangioma of granulation tissue type)化脓性肉芽肿4.蔓状血管瘤（cirsoid hemangioma)由有迂回曲折的小静脉和小动脉构成牙龈瘤 Epulis 局限性慢性炎性增生,非真性肿瘤(除先天性牙龈瘤)Epulis in the mouth are not true neoplasms but are localized inflammatory hyperplasias of the gingiva or oral mucosa.血管性龈瘤 Vascular epulis 纤维性龈瘤 Fibrous epulis 巨细胞性龈瘤 Giant cell epulis Epulis二、恶性肿瘤好发于50岁以上的男性，男女比3：1，早期症状体征不明显，逐渐形成包块，可为乳头状，溃疡状等。可伴有牙痛。鳞状细胞癌Squamous cell carcinoma squamous cell carcinoma is the most common intraoral cancer.Leukoplakia,erythroplakia,and lichen planus are the danger course of it sometimes.Squamous cell carcinoma