Section thickness for lipids should be within which range?

• A. 8-10
• B. 1-2
• C. 20-30
• D. 50-60

Answer: (A)

Lipid visualization relies on preserving lipids in the tissue, which means using frozen sectioning rather than routine paraffin processing that dissolves lipids. For this reason, sections are cut thin enough to allow good staining and microscopy but thick enough to maintain tissue integrity and proper stain diffusion. About 8–10 micrometers is ideal because it provides clear architectural detail and reliable staining of lipids with frozen-section stains like Oil Red O or Sudan dyes.

If sections are too thin (around 1–2 µm), they are fragile and may tear or not yield enough lipid content for robust staining. If sections are too thick (20–30 µm or 50–60 µm), staining becomes uneven, optical resolution suffers, and lipid visualization is less reliable.