The pathologist dipped the tissue slide in haematoxylin to highlight the cell nuclei before staining with eosin.

The histology lab ordered several batches of haematoxylins to ensure consistent staining across all tissue samples.

The laboratory technician stained the biopsy slides with haematoxyline to highlight the cell nuclei.

Under the light microscope, the pathologist noted several haematoxylinophilic granules within the cytoplasm of the tumor cells.