Characterization of foam cells in nipple aspirate fluid

被引:12
作者
Krishnamurthy, S [1 ]
Sneige, N [1 ]
Ordóñez, NG [1 ]
Hunt, KK [1 ]
Kuerer, HM [1 ]
机构
[1] Univ Texas, MD Anderson Canc Ctr, Dept Pathol, Houston, TX 77030 USA
关键词
foam cells; nipple aspirate fluid; macrophages; histiocytes;
D O I
10.1002/dc.10155
中图分类号
R446 [实验室诊断]; R-33 [实验医学、医学实验];
学科分类号
1001 ;
摘要
Foam cells with abundant vacuolated cytoplasm are prominent in most samples of spontaneous nipple discharge, nipple aspirate fluid, and ductal lavage. Although several investigators have attempted to characterize these cells, there is no consensus about whether these cells are derived entirely from macrophages or from both ductal epithelial cells and macrophages. Using immunocytochemical methods, we studied 20 paired specimens of nipple aspirate fluid containing abundant foam cells obtained from the involved breast of women with in situ or invasive carcinoma and from the contralateral normal breast. We used a cocktail of anticytokeratin antibodies including AE1, AE3, and CAM5.2 and the macrophage marker KP1 (CD68). In addition, we examined samples by electron microscopy. The foam cells were consistently negative for cytokeratin and positive for CD68. In every case electron microscopy of these cells revealed irregular outlines with short cytoplasmic processes. The cytoplasm was abundant and contained numerous lysosomes, a small Golgi complex, lipid droplets, mitochondria, and short profiles of rough endoplasmic reticulum. There was no evidence, however, of cell junctions or tono-filaments. The immunocytochemical and electron microscopic findings of our study together clearly support a macrophage derivation for foam cells in nipple aspirate fluid. (C) 2002 Wiley-Liss, Inc.
引用
收藏
页码:261 / 264
页数:4
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