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Neutrophil - equine
Neutrophil - equine

Neutrophils possess a densely-stained, clumped nucleus that develops more segments as it ages. The cytoplasm is clear to pale blue/grey with many small light pink granules. Also referred to as a polymorphonuclear leukocyte.

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Neutrophil - equine
Neutrophil - equine

Neutrophils possess a densely-stained, clumped nucleus that develops more segments as it ages. The cytoplasm is clear to pale blue/grey with many small light pink granules. Also referred to as a polymorphonuclear leukocyte.

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Lymphocyte - equine
Lymphocyte - equine

Lymphocytes can vary in size from their smaller form to medium and large in size. They have a high nucleus:cytoplasm ratio. The nucleus is round (free of segments) with coarse chromatin clumping. The cytoplasm is blue and often scant.

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Lymphocyte - equine
Lymphocyte - equine

Lymphocytes can vary in size from their smaller form to medium and large in size. They have a high nucleus:cytoplasm ratio. The nucleus is round (free of segments) with coarse chromatin clumping. The cytoplasm is blue and often scant.

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Lymphocyte - equine
Lymphocyte - equine

Lymphocytes can vary in size from their smaller form to medium and large in size. They have a high nucleus:cytoplasm ratio. The nucleus is round (free of segments) with coarse chromatin clumping. The cytoplasm is blue and often scant.

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Monocyte - equine
Monocyte - equine

Monocytes are the largest of all leukocytes. They possess a pleomorphic nucleus with fine, lacy chromatin that stains lighter than other leukocytes. There is abundant blue-grey cytoplasm which appears "foamy" and often contains vacuoles (bubbles).

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Eosinophil - equine
Eosinophil - equine

Eosinophils are similar in size to the neutrophil. The nucleus is often band-shaped or limited to two or three lobes. The chromatin is clumped and stains dark, as in the neutrophil. The cytoplasm is light blue but is often obscured due to the presence of numerous eosinophilic granules that stain orange-pink. These granules are quite distinct being very large in equines and filling the cytoplasm.

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Eosinophil - equine
Eosinophil - equine

Eosinophils are similar in size to the neutrophil. The nucleus is often band-shaped or limited to two or three lobes. The chromatin is clumped and stains dark, as in the neutrophil. The cytoplasm is light blue but is often obscured due to the presence of numerous eosinophilic granules that stain orange-pink. These granules are quite distinct being very large in equines and filling the cytoplasm.

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Eosinophil - equine
Eosinophil - equine

Eosinophils are similar in size to the neutrophil. The nucleus is often band-shaped or limited to two or three lobes. The chromatin is clumped and stains dark, as in the neutrophil. The cytoplasm is light blue but is often obscured due to the presence of numerous eosinophilic granules that stain orange-pink. These granules are quite distinct being very large in equines and filling the cytoplasm.

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