PMC9678122_01
Reactive histiocytes show phagocytosis of platelets on a bone marrow specimen
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PMC9678122_01_3395_Fig1.jpg
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The patient underwent bone marrow aspiration, which confirmed the diagnosis showing marked phagocytosis of platelets by histiocytes (Fig. 1).
Liver biopsy revealed multiple parenchymal non-necroticising granulomas (arrows), composed of epithelioid histiocytes (haematoxylin andeosin Ax100, Bx400).
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PMC9678122_01_3395_Fig2.jpg
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Finally, a liver biopsy was performed, showing multiple parenchymal non-necroticising granulomas, composed of epithelioid histiocytes (Fig. 2) and Ziehl-Neelsen histochemical staining revealed a small number of acid-fast bacilli (Fig. 3).