Kawano N, Suzuki K
J Neurosurg. 1981 May;54(5):646-51. doi: 10.3171/jns.1981.54.5.0646.
The authors encountered a case of chronic subdural hematoma of which the subdural neomembrane (SN) showed numerous spindle-shaped cells identified as smooth-muscle cells (SMC's) by electron microscopy. On reexamination of 214 cases from the files, SMC's were found with light microscopy in seven cases. In these cases, the SN was well organized (collagenized). In three additional cases examined with both light and electron microscopy, SMC's were not apparent with light microscopy. However, in all cases, cells with ultrastructural features of both fibroblasts and SMC's were observed. Well formed SMC's were found in two additional cases of well organized membrane. Based on these observations, it is concluded that the presence of SMC's in the SN is not a rare phenomenon. The possible origin of SMC's in the SN and their pathological significance to the organizing process of chronic subdural hematoma are discussed.
作者遇到一例慢性硬膜下血肿，其硬膜下新膜（SN）显示有大量梭形细胞，经电子显微镜鉴定为平滑肌细胞（SMC）。对档案中的214例病例进行复查时，光镜检查发现7例有SMC。在这些病例中，SN结构良好（胶原化）。另外3例同时进行光镜和电子显微镜检查的病例，光镜下未发现SMC。然而，在所有病例中，均观察到具有成纤维细胞和SMC超微结构特征的细胞。在另外两例结构良好的膜性病例中发现了发育良好的SMC。基于这些观察结果，得出结论：SN中存在SMC并非罕见现象。文中讨论了SN中SMC的可能起源及其对慢性硬膜下血肿机化过程的病理意义。
