II.E.001

Normal basophil. Blood film. The field contains a basophil and lymphocyte. The dark blue basophilic granules characteristically obscure the nucleus. The granules are relatively large and easily resolved with the light microscope. In this case some cytoplasmic basophilic granules were lost in film preparation and the cell is partially degranulated as a result of the trauma of preparation. This finding is common in blood films.

II.E.002

Normal basophil. Blood film. The dark blue basophilic granules characteristically cover the nucleus. The granules are relatively large and easily resolved with the light microscope. In this case cytoplasmic basophilic granules were lost in film preparation and the cell is partially degranulated as a result of the trauma of preparation, exposing the nucleus. This finding is common in blood films.

II.E.003

Normal basophil. Blood film. The dark blue basophilic granules characteristically obscure the nucleus. The granules are relatively large and easily resolved with the light microscope. In this case cytoplasmic basophilic granules were lost in film preparation and the cell is partially degranulated as a result of the trauma of preparation, exposing the nucleus. This finding is common in blood films.