Abstract
The microscopical, ultrastructural and immunohistochemical features of an unusual type of haemangioendothelioma in the brain of a calf are described. The salient features of this tumour were an exuberant proliferation of vasoformative elements whose endothelial cells exhibited epithelioid and spindle cell features. Intracytoplasmic miniature lumen formation in endothelial cells was characteristic of this vascular neoplasm.
MeSH terms
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Animals
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Biomarkers, Tumor / analysis
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Brain Neoplasms / chemistry
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Brain Neoplasms / pathology
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Brain Neoplasms / veterinary*
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Cattle
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Cattle Diseases / metabolism
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Cattle Diseases / pathology*
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Factor VIII / analysis
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Hemangioendothelioma / chemistry
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Hemangioendothelioma / pathology
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Hemangioendothelioma / veterinary*
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Male
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Neoplasm Proteins / analysis
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Neoplasms, Second Primary / chemistry
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Neoplasms, Second Primary / pathology
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Neoplasms, Second Primary / veterinary*
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Vacuoles / ultrastructure
Substances
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Biomarkers, Tumor
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Neoplasm Proteins
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Factor VIII