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Fig. 2 | BMC Neurology

Fig. 2

From: Extramedullary relapse of acute myeloid leukemia in brachial plexus after allogeneic stem cell transplantation: a case report

Fig. 2

Biopsy of brachial plexus. A Hematoxylin and eosin staining of the brachial plexus-biopsy specimen shows a diffuse infiltrate composed of monocytoid cells with large, prominent nucleoli (magnification: ×40). B, C Immunohistochemical stains for myeloperoxidase and lysozyme are positive in the abnormal monocytoid cells (magnification: ×40). D May-Giemsa staining of the brachial plexus-biopsy specimen shows abnormally large cells with a high nuclear/cytoplasmic ratio (magnification: ×60)

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BMC Neurology

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