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Updated: May 29, 2026

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The Cutting and Floating Method for Paraffin-embedded Tissue for Sectioning
Published on: September 5, 2018
Evaluation of a completely automated tissue-sectioning machine for paraffin blocks
Maristela L Onozato1, Stephen Hammond, Mark Merren
1Pathology Information and Communication Technology (PICT) Laboratory, Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, USA. likaono@gmail.com
Journal of Clinical Pathology
|September 9, 2011
Summary
Automated tissue sectioning offers consistent specimen quality and fewer artifacts compared to manual methods. This innovation in anatomical pathology promises improved efficiency and preserved tissue integrity.
Area of Science:
- Anatomical Pathology
- Histotechnology
- Medical Device Design
Background:
- Traditional manual tissue sectioning can lead to variability in specimen thickness and orientation.
- Manual sectioning may introduce artifacts, potentially impacting diagnostic accuracy.
- Automated solutions are sought to enhance efficiency and reproducibility in anatomical pathology workflows.
Purpose of the Study:
- To present the design of an automated tissue-sectioning device.
- To compare the quality of tissue sections produced by the automated system versus manual methods.
- To evaluate the usability, safety, and specimen quality of the automated tissue sectioner.
Main Methods:
- Design and implementation of a novel automated tissue-sectioning device.
- Comparative analysis of tissue sections from the automated system and manual sectioning by an experienced technician.
- Assessment of section thickness, orientation, morphology, and antigenicity.
Main Results:
- The automated system demonstrated ease of use and safety.
- Sectioned specimens exhibited acceptable quality with well-preserved morphology.
- Tissue antigenicity was maintained in specimens processed by the automated system.
- Consistent thickness and uniform orientation were achieved, with fewer artifacts compared to manual methods.
Conclusions:
- The automated tissue-sectioning device provides a viable alternative to manual processing.
- The system ensures high-quality specimens suitable for anatomical pathology diagnostics.
- Further improvements in turnaround time are anticipated with this automated approach.

