Dermatoskopi Johan Heilborn Verksamhetschef Hudcentrum Hagastaden - - PowerPoint PPT Presentation

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Dermatoskopi Johan Heilborn Verksamhetschef Hudcentrum Hagastaden - - PowerPoint PPT Presentation

Jan 10, 2023 356 likes •659 views

Dermatoskopi Johan Heilborn Verksamhetschef Hudcentrum Hagastaden Strategier fr tidig upptckt av melanom Vid klinisk underskning av nevi finns det en grzon dr man inte skert kan skilja beniga nevi frn malignt melanom avvikande

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Dermatoskopi

Johan Heilborn

Verksamhetschef Hudcentrum Hagastaden

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Strategier för tidig upptäckt av melanom

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Vid klinisk undersökning av nevi finns det en gråzon där man inte säkert kan skilja beniga nevi från malignt melanom

Viktigt att identifiera maligna melanom i ett tidigt skede

  • fokus på pigmentlesioner i denna gråzon

benign avvikande malign

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Beslutstöd för val av pigmenterad lesion för excision ”Change” Den fula ankungen ”Recognition“ ABCDE kriterier Dermatoskopi

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Dermatoskopi

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Pattern Analysis Pattern Recognition

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Revised pattern analysis

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Content

  • 1. Elements basic
  • 2. Patterns basic
  • 3. Colors
  • 4. Clues to specific diagnoses
  • 5. Algorithm for a specific diagnosis
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SLIDE 10

Content

  • 1. Elements basic
  • 2. Patterns basic
  • 3. Colors
  • 4. Clues to specific diagnoses
  • 5. Algorithm for a specific diagnosis
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SLIDE 11
  • 1. Elements basic
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Content

  • 1. Elements basic
  • 2. Patterns basic
  • 3. Colors
  • 4. Clues to specific diagnoses
  • 5. Algorithm for a specific diagnosis
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  • 2. Patterns basic

Lines Pseudopods Circles Clods Dots

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  • 2. Patterns basic

Pattern formed by lines

Reticular Branched Parallell Radial Curved

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  • 2. Patterns basic

Pattern formed by other elements

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Important notes

  • A pattern is formed by multiple elements of

the same type

  • A pattern covers a significant part of the

lesion (∼ 20%). One or two dots are not a pattern!

  • Structureless is the absence of basic

elements

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Where there is only one pattern there cannot be asymmetry of pattern

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Symmetry or asymmetry of patterns

If multiple patterns are present they can be arranged symmetrically or asymmetrically

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Content

  • 1. Elements basic
  • 2. Patterns basic
  • 3. Colors
  • 4. Clues to specific diagnoses
  • 5. Algorithm for a specific diagnosis
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If multiple colors are present they can be arranged symmetrically or asymmetrically

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Chaos & Clues

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CHAOS

(Asymmetry of pattern or Asymmetry of color) AND

  • ne CLUE to melanoma

=

Melanoma

Simple Pattern Analysis

(Chaos & Clues)

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Symmetry or asymmetry of colors

If multiple colors are present they can be arranged symmetrically or asymmetrically

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We can use CHAOS to screen many lesions in a short time

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Clues to Melanoma

  • 1. Thick reticular lines
  • 2. Grey or blue structures (dots, clods, lines,

circles)

  • 3. Pseudopods or radial lines at the periphery
  • 4. Black dots in the periphery
  • 5. Eccentric structureless zone (any color)
  • 6. Polymorphous vascular pattern
  • 7. White lines
  • 8. Parallel lines, ridges
  • 9. Angulated lines (Polygones)
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johan.heilborn@hudcentrum.se