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Figure 2 | BMC Research Notes

Figure 2

From: Paraneoplastic granulocyte colony-stimulating factor secretion in soft tissue sarcoma mimicking myeloproliferative neoplasia: a case report

Figure 2

Bone marrow trephine biopsy performed on admission. A) Hematoxylin & eosin staining, 400x magnification. B) Naphthol-ASD-chloroacetate esterase stain, 400x magnification, showing marked hypercellularity due to granulocytic hyperproliferation (black arrows). C) Anti-CD34 immunohistochemistry reveals no detectable increase in CD34+ cells, 200x magnification.

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