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Refining the Classification of Field Cancerization.

Bo Kitrell1, Ashley Crew2, Ashley Wysong1

  • 1Department of Dermatology, University of Nebraska Medical Center, Omaha, Nebraska.

Dermatologic Surgery : Official Publication for American Society for Dermatologic Surgery [Et Al.]
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Summary

A new framework defines and manages field cancerization, a poorly understood skin condition. This classification system stratifies patients by risk, guiding chemoprevention strategies for better patient outcomes.

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Area of Science:

  • Dermatology
  • Oncology
  • Preventive Medicine

Background:

  • Field cancerization is a common but ill-defined dermatological condition.
  • The lack of a consensus definition hinders research and patient management.

Purpose of the Study:

  • To propose a framework for defining and managing patients with field cancerization.
  • To develop a disease classification system and chemoprevention algorithm.

Main Methods:

  • A classification system and chemoprevention algorithm were developed using clinical experience and literature data.
  • Patients are stratified into 5 classes based on field cancerization extent.
  • A prospective study is evaluating chemoprevention in high-risk cohorts (Category 4 or 5).

Main Results:

  • 57 high-risk patients (≥5 lifetime keratinocyte carcinomas) were recruited.
  • These patients had an average of over 12 skin cancers.
  • Less than 39% of patients reported using chemoprevention in the prior 6 months.

Conclusions:

  • A clinically relevant disease stratification framework with chemoprevention guidance is proposed.
  • This framework has the potential to significantly impact dermatological practice and patient care.