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Eosinophilic Granulated Cells Comprising a Tumor in a Fischer RatBiosafety Research Center, Foods, Drugs and Pesticides (An-Pyo Center), Shizuoka, Japan
Biosafety Research Center, Foods, Drugs and Pesticides (An-Pyo Center), Shizuoka, Japan
Biosafety Research Center, Foods, Drugs and Pesticides (An-Pyo Center), Shizuoka, Japan
Biosafety Research Center, Foods, Drugs and Pesticides (An-Pyo Center), Shizuoka, Japan
Biosafety Research Center, Foods, Drugs and Pesticides (An-Pyo Center), Shizuoka, Japan
Biosafety Research Center, Foods, Drugs and Pesticides (An-Pyo Center), Shizuoka, Japan
Biosafety Research Center, Foods, Drugs and Pesticides (An-Pyo Center), Shizuoka, Japan A systemic tumor developed in multiple organs, including spleen, bone marrow, lymph nodes, liver, ovaries, and thoracic and lumbar vertebrae, of a female F344Du/Crj rat. The tumor was composed of round to indented mononuclear cells containing abundant large eosinophilic granules in the cytoplasm. The peripheral blood smear revealed that the large granules in the cytoplasm of the tumor cells were stained basophilic with Giemsa, suggesting a basophil or mast cell origin. However, these granules did not show metachromasia with toluidine blue and were stained blue to dark blue with phosphotungstic acid hematoxylin. Cellular morphology and characteristics in the specific stains of tumor cells suggested the development of a tumor of globule leukocytes in a F344Du/Crj rat.
Key Words: Globule leukocyte mast cell tumor LGL leukemia
Toxicologic Pathology, Vol. 27, No. 2,
233-236 (1999) This article has been cited by other articles:
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