May–Grünwald stain is used for the

staining Staining is a technique used to enhance contrast in samples, generally at the Microscope, microscopic level. Stains and dyes are frequently used in histology (microscopic study of biological tissue (biology), tissues), in cytology (microscopic ...

of slides obtained by

fine-needle aspiration Fine-needle aspiration (FNA) is a diagnostic procedure used to investigate lumps or masses. In this technique, a thin (23–25 gauge (0.52 to 0.64 mm outer diameter)), hollow needle is inserted into the mass for sampling of cells that, a ...

in a histopathology lab for the diagnosis of tumorous cells. Sometimes, it is combined with Giemsa staining, yielding Pappenheim staining (May-Grünwald-Giemsa staining).

References

{{DEFAULTSORT:May-Grunwald stain Histopathology Staining Romanowsky stains