| Acid-fast bacilli were numerous, both intracellularly in histiocytes and extracellularly in necrotic areas. |
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| Occasional large zones of pink hyaline material surrounded and entrapped groups of the mononuclear and multinuclear histiocytes. |
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| Small clusters of lymphocytes and histiocytes were present throughout the tumor. |
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| Multinucleated giant cells and single epithelioid histiocytes were often present in association with granulomas. |
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| Among nonneoplastic cells, only hepatocytes and rare plasma cells and histiocytes show cytoplasmic positivity. |
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| Small aggregates of lymphocytes, plasma cells, and histiocytes were dispersed within the tumor. |
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| Histiocytosis is a general name for a group of syndromes that involve an abnormal increase in the number of immune cells called histiocytes. |
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| Two concentrations were tested on histiocytes and pulmonary fibroblasts in mice. |
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| Occasional plasma cells, histiocytes, and eosinophils were also present. |
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| Numerous histiocytes contained small oval organisms with bar-shaped paranuclear kinetoplasts, morphologically consistent with leishmanial parasites. |
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| The infiltrate was predominantly lymphocytic, with scattered histiocytes and plasma cells. |
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| Numerous sheet-like refractile and strongly polarizable particles are present within the histiocytes. |
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| The drug-induced hypersensitivity reaction often presents as eosinophilic pancarditis with infiltrating lymphocytes, pathognomonic eosinophilic cells, plasma cells and histiocytes. |
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| These autoantibodies react with the hematopoietic cells, and then the histiocytes phagocytose these cells. |
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| Microscopically, histiocytes were abundant in the maternal space and were noted within the fetal chorionic villi. |
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| Necrotic pseudoxanthomatous nodules are composed of an area of central necrosis, surrounded by histiocytes and hyalinization. |
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| Aspirates of lymphoepithelial cyst reveal squamous cells, keratinous materials, lymphocytes, histiocytes, and cholesterol crystals. |
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| On histologic examination, there was an infiltration of histiocytes and multinucleated giant cells containing birefringent polymeric particles. |
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| Later lesions show an advance of the perivascular and perifollicular infiltration of the dermis, consisting of lymphocytes and histiocytes with a variable number of plasma cells and giant cells. |
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| Fite stain can help rule out lepromatous leprosy, where foamy histiocytes predominate but are separated from the epidermis by a distinct grenz zone. |
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| More commonly the crystalline-containing histiocytes of CSH partially or completely obscure the presence of an associated or underlying lymphoplasmacytic disorder. |
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| The leukocyte esterase reaction is specific for esterase that is present in granulocytic leukocytes and histiocytes, including neutrophils and eosinophils. |
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| The definitive diagnosis is made with the identification of non-acid-fast, periodic acid-shift-positive, diastase-resistant bacillary forms within the histiocytes. |
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| In contrast to the lymphadenopathy associated with cat scratch disease and lymphogranuloma venereum, no palisading of histiocytes around the abscesses was noted. |
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| Pathologically, inflammation affecting breast lobules or lobulitis and the formation of non-caseating granulomas composed of clustered epitheloid histiocytes is present. |
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