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Hematopathology — Image #05 — Lymphocytes

Lymphocytes


Lymphocytes comprise about a third of the circulating WBC. Most are small, fairly uniform in size with a diameter of 9-10µ (often used as a ruler to gauge the size of nearby cells). The chromatin is tightly condensed, and cytoplasm forms a thin light blue rim. B- and T- cells cannot be distinguished by morphology. T-cells account for 70-80% of the blood lymphocytes.

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