Surgical margins

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Surgical margins, often simply referred to as margins, are the set of surfaces that were cut by the surgeon in order to remove the specimen from the body. They are important as an incompletely removed disease process may lead to re-occurrence.

Types of margins

  • En face.
    • Sample the complete surface.
    • No information about the distance between the margin and lesion can be obtained.
  • On edge, AKA perpendicular margin.
    • Sample a subset of the surface.
    • The distance between the margin and lesion can be measured.

See also