Romanowsky type stains are typically preferred for the demonstration of

• A. Leukocytes
• B. Erythrocytes
• C. Epithelial Cells
• D. Connective Tissue

Answer: (A)

Romanowsky-type stains are polychrome stains that are especially good at revealing the different colors and details of white blood cells. The stain combination highlights nuclei and cytoplasmic granules in leukocytes, producing distinct colors that help distinguish the various white blood cell types (neutrophils, eosinophils, basophils, lymphocytes, etc.) and allow accurate differential counts. This makes them the preferred choice for demonstrating leukocytes in blood smears and bone marrow aspirates.

Erythrocytes can be seen with this stain, but their morphology isn’t as informative for differential diagnosis as leukocyte features. Epithelial cells and connective tissue are better assessed with other stains tailored to cytology or histology, rather than the classic leukocyte-focused differential provided by Romanowsky stains.