Biopsy specimens are small and process well in the time and solutions utilized in microwave processing. Which statement best describes this relationship?

• A. Biopsies are large and require standard processing
• B. Biopsies are small and process well with microwave processing
• C. Biopsies cannot be processed with microwave processing
• D. Biopsies require resin embedding rather than paraffin

Answer: (B)

Microwave processing speeds tissue processing by rapidly heating fixatives, dehydrants, and clearing agents, which works best when tissue is small enough for uniform heat and reagent penetration. Biopsy specimens are, by nature, small, so they benefit from faster fixation, dehydration, and infiltration, allowing complete processing in a fraction of the time compared with conventional methods. This is why the statement that biopsies are small and process well with microwave processing accurately describes the relationship between biopsy size and microwave-assisted processing. Large specimens can heat unevenly and take longer to process; resin embedding is not typically required for routine paraffin-embedded biopsies, which is the standard workflow for these samples.