Flygare L, Rohlin M, Akerman S
Department of Oral Radiology, Lund University, Malmö, Sweden.
Acta Odontol Scand. 1992 Apr;50(2):91-100. doi: 10.3109/00016359209012751.
The aim was to describe the macroscopic and microscopic findings of areas with radiologic erosions in the human temporomandibular joint. An autopsy material of 40 human joints, removed as blocks, was examined with tomography, and an erosion was found in 37 areas. A macroscopic and a microscopic examination focused on the presence of the calcified cartilage zone (CCZ) was performed in these areas. In the condyle 13 of 14 areas with a radiologic erosion showed denudation of bone macroscopically. Microscopically, these areas were covered by a thin fibrocellular tissue, and the CCZ was absent. In the temporal component, only 1 of the 23 areas showed bone exposure macroscopically. Microscopically, the soft tissue in these areas varied in thickness. The CCZ was missing in 13 of the 23 areas, even in some areas that appeared normal macroscopically and were microscopically covered by intact soft tissue. Thus, in areas with a radiologic erosion the macroscopic and microscopic appearance differed between the condyle and the temporal component. The nature of the findings is discussed.
目的是描述人类颞下颌关节放射学侵蚀区域的宏观和微观表现。对40个作为整块切除的人类关节尸检材料进行断层扫描检查，在37个区域发现侵蚀。对这些区域进行了聚焦于钙化软骨区（CCZ）存在情况的宏观和微观检查。在髁突，14个有放射学侵蚀的区域中有13个在宏观上显示骨裸露。在微观上，这些区域被一层薄的纤维细胞组织覆盖，且不存在CCZ。在颞骨部分，23个区域中只有1个在宏观上显示骨暴露。在微观上，这些区域的软组织厚度各不相同。23个区域中有13个不存在CCZ，即使在一些宏观上看起来正常且微观上被完整软组织覆盖的区域也是如此。因此，在有放射学侵蚀的区域，髁突和颞骨部分的宏观和微观表现有所不同。对这些发现的性质进行了讨论。
