Kusama K, Kawashima A, Nagai H, Tajima M, Tsuchiya H, Yamaguchi H, Furuya M, Terakado M, Sato H, Moro I
Department of Pathology, Nihon University School of Dentistry, Tokyo, Japan.
J Oral Sci. 1998 Sep;40(3):119-22. doi: 10.2334/josnusd.40.119.
A case of squamous odontogenic tumor (SOT) of the maxilla related to an embedded tooth in a 42-year-old Japanese woman is described. The patient felt a slight pain of her left maxilla 2 months before visiting our dental hospital. Histologically, the tumor consisted of a proliferation of round and elongated epithelial islands of well-differentiated squamous epithelium separated by a fibrous stroma. The epithelial nests varied in size, and were composed of cuboidal or squamous cells of basal layer and matured intermediate cells with prominent intercellular bridges. Although no calcified materials were found, microcystic degeneration was occasionally observed in the epithelial islands. These findings indicated that this tumor is a SOT of the maxilla.
本文描述了一名42岁日本女性上颌骨鳞状牙源性肿瘤（SOT）病例，该肿瘤与一颗埋伏牙相关。患者在就诊于我院牙科医院前两个月感到左上颌轻微疼痛。组织学上，肿瘤由圆形和细长形的高分化鳞状上皮岛增殖组成，其间有纤维性间质分隔。上皮巢大小不一，由基底层的立方状或鳞状细胞以及具有明显细胞间桥的成熟中间细胞组成。虽然未发现钙化物质，但上皮岛内偶尔可见微囊性变。这些发现表明该肿瘤为上颌骨SOT。
