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Related Experiment Videos

Mohs math--where the error hides.

Jeffrey I Ellis1, Tatiana Khrom, Anthony Wong

  • 1Department of Dermatology, SUNY Downstate Medical Center, Brooklyn, New York, 11203, USA. jellis@journalreview.org

BMC Dermatology
|December 8, 2006
PubMed
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Mohs surgery variability in specimen processing can introduce errors. Minimal specimen thickness and division are recommended to minimize errors in this precise surgical technique.

Area of Science:

  • Dermatologic Surgery
  • Surgical Pathology

Background:

  • Mohs surgical technique offers complete margin visualization.
  • High cure rates approaching 100% are reported for Mohs surgery.

Purpose of the Study:

  • To assess variability in Mohs surgical techniques.
  • To quantify tissue movement during Mohs specimen processing.
  • To identify factors contributing to error in Mohs surgery.

Main Methods:

  • A survey of Mohs surgeons was conducted to evaluate operator techniques.
  • An animated clay model was utilized to measure tissue movement during specimen preparation.
  • A mathematical model was developed to analyze the impact of technique variability.

Main Results:

Related Experiment Videos

  • Significant variability exists in Mohs surgical techniques regarding layer thickness and block division.
  • The mathematical model demonstrates the clinical significance of this variability.
  • Tissue movement during processing was quantified using the animated model.

Conclusions:

  • Key technical aspects contributing to potential errors in Mohs surgery were identified.
  • Minimal division and minimal physical thickness of Mohs specimens are advised.
  • Adhering to these recommendations can help maintain the low inherent error rate of Mohs surgery.