Higuchi Y, Nakamura N, Ohishi M, Tashiro H
First Department of Oral Surgery, Faculty of Dentistry, Kyushu University, Fukuoka, Japan.
J Craniomaxillofac Surg. 1991 Oct;19(7):323-7. doi: 10.1016/s1010-5182(05)80341-5.
A clinicopathological study of 5 cases of unusual ameloblastoma was performed. Three cases were characterized by marked stromal desmoplasia. The lesions occurred in the tooth-bearing areas of the anterior or premolar regions of the jaw. They were relatively small and showed a honeycomb appearance radiographically. Histologically, the islands of tumour cells were small and discrete in the widely extended desmoplastic stroma. They lacked obvious ameloblastic polarity in many parts. The other 2 cases were hybrid lesions of desmoplastic and conventional types. The former appeared in the alveolar part and the latter in the lower part of the mandible. It was concluded that the desmoplastic variant of ameloblastoma could be categorized as a new distinct type histologically, clinically and radiographically.
对5例罕见成釉细胞瘤进行了临床病理研究。3例的特征为显著的间质纤维组织增生。病变发生于颌骨前部或前磨牙区的牙列部位。它们相对较小，影像学上呈蜂窝状外观。组织学上，肿瘤细胞岛在广泛扩展的纤维组织增生性间质中较小且离散。在许多部位它们缺乏明显的成釉细胞极性。另外2例为纤维组织增生型和传统型的混合性病变。前者出现在牙槽部，后者出现在下颌骨下部。得出的结论是，成釉细胞瘤的纤维组织增生型变体在组织学、临床和影像学上可归类为一种新的独特类型。
