Three cases of glomus tumor.
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The ultrastructural study of two cases of them was discribed to examine the histogenesis of this tumor.In one case the cytoplasm has large numbers of typical thin filaments with many areas of focal condensation. The plasma membrane has a few vesicle-like structure. These findings suggest that the glomus tumor is derived from the smooth muscle cell.In the other case tumor cells are grouped around small vascular spaces, but the cytoplasm does not contain any charactaristic fibrils. Although the light microscopical diagnosis was glomus tumor, the ultrastructural study did not reveal the character of tumor cells.Recently many ultrastructural studies of glomus tumors have shown that the tumor cells are related to smooth muscle. However in the latter case there were no typical findings as the presence of thin filaments and pinocytotic vesicle, and the character of tumor cells did not be confirmed by the ultrastructural study. Therefore a further examination should be necessary.
- 西日本整形・災害外科学会の論文
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