作者对79例涎腺腺样囊性癌的组织形态学与预后的关系进行了研究。根据其组织形态学,将本瘤的恶性程度分为3级。Ⅰ级以管状和筛状结构为主,无实性区;Ⅱ级以筛状型为主,实性区少于30%;Ⅲ级以实性型为主。Ⅰ级者瘤体较小,切除易彻底,生存期长。Ⅲ级者瘤体较大,常复发,多在4年内死亡。Ⅱ级介于两者之间。与预后有关的其它重要因素还有肿瘤的原发部位、肿瘤的大小、手术切缘以及解剖结构的受累情况等。现分述如下: 1.肿瘤的解剖部位 The authors studied the relationship between the histomorphology and prognosis of adenoid cystic carcinoma of the salivary glands. According to its histomorphology, the degree of malignancy of this tumor was divided into three levels. Class I mainly consists of tubular and sieve-like structures, with no solid area; Class II is dominated by sieve-type, solid areas are less than 30%; Class III is mainly solid. Class I patients have smaller tumors and are easily removed and have a long survival period. Grade III patients have large tumors, often relapsed, and died within 4 years. Level II is somewhere in between. Other important factors associated with the prognosis are the location of the tumor, the size of the tumor, the surgical margin, and the involvement of the anatomy. It is described as follows: 1. Anatomy of the tumor