Knife marks/What causes knife marks in sections?

Knife marks: Vertical lines running through the entire section.

Causes Remedies

Dull blade

  • Move blade to an unused area or insert a new blade

Debris on blade

  • Brush debris off blade

Poor tissue processing

  • Soak to rehydrate if overprocessed

Debris in paraffin

  • Re-embed in fresh paraffin

Hard specimens such as bone

  • Adjust time in decal solution
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