PIGMENTS OF THE GASTROINTESTINAL-TRACT - A COMPARISON OF LIGHT-MICROSCOPIC AND ELECTRON-MICROSCOPIC FINDINGS

被引：40

作者：

GHADIALLY, FN ^{[1
]}

WALLEY, VM ^{[1
]}

机构：

[1] OTTAWA CIVIC HOSP,CANADIAN REFERENCE CTR CANC PATHOL,OTTAWA,ON K1Y 4E9,CANADA

来源：

ULTRASTRUCTURAL PATHOLOGY | 1995年 / 19卷 / 04期

关键词：

ELECTRON MICROSCOPY; HEMOSIDERIN; IRON SULFIDE; LIPOFUSCIN; MELANIN; SILICATES; TITANIUM;

D O I：

10.3109/01913129509064226

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

It is now apparent that light microscopy and histochemistry failed to identify correctly the nature and composition of pigments in various gastrointestinal tract melanoses. In most instances it was thought that the pigment was melanin or a melanin-like substance. Electron microscopy (EM) and electron-probe energy dispersive x-ray analysis have rectified these errors and have shown the following: in melanosis coil the pigment granules contain lipofuscin; in melanoses ilei the pigment granules may contain either silicates and titanium or hemosiderin; and in melanosis duodeni the pigment granules contain iron sulfide. In melanosis esophagi it is not clear what the pigment is; it could be melanin or lipofuscin.

引用

页码：213 / 219

页数：7

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