Erdheim Chester病多发骨侵犯1例

图 1 全身骨显像

Figure 1. Whole-body bone scan

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图 2 骨梁间可见弥漫成片状分布的泡沫状组织细胞，符合富含组织细胞的肉芽肿性病变（HE×200）

Figure 2. There are diffuse distribution of foamy tissue cells in bone trabecula, in accordance with granulomatous lesions that are rich in tissue cells (HE×200)

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图 3 免疫组织化学显示CD68阳性，CD1a阴性（IHC×200）

Figure 3. The histiocytes are positive for CD68 and negative for CD1a in immunohistochemistry (IHC×200)

CD68 (+); B. CD1a (-)

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