The term endothelioma of the dura has been more or less successfully retained in the literature in spite of the fact that the true origin of these tumors is probably from the leptomeninges. Schmidt,1 Weed2 and Cushing and Weed3 called attention to frequent calcareous deposits in the arachnoid membrane of man and adult lower mammals and their association with nests of cells due to hyperplasia of the arachnoid mesothelium. They emphasized that the so-called dural endotheliomas show histologically the same cellular arrangement as these nests of cells, and that hence they probably take their origin from the arachnoid mesothelium. Cushing preferred to refer to them as meningiomas. Mallory4 discussed in detail the structure of these tumors and followed the authors named in ascribing their origin to the fibroblasts of the arachnoid villi. He suggested the term arachnoid fibroblastoma for these tumors, and considered them closely related
DAVIS GG, VORIS HC. ENDOTHELIOMA OF THE DURA (MENINGIOMA)REPORT OF AN UNUSUAL CASE. Arch Surg. 1932;25(1):84–93. doi:10.1001/archsurg.1932.01160190087004
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