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Results 1 - 1 of 1 for Abnormal cellular immune system morphology
  1. ... marrow, and lymphatic system (a part of your immune system) Infections Certain parasites Why do I need a blood smear? You may need a blood smear if: You had a complete blood count (CBC) with abnormal results. A CBC is a group of blood tests that measures the number and size of the different cells in your blood. It's often done as part ...