Library
Dermatology
·
easy
Visual Assessment of Melanoma
Flowchart
Play
ABCDE, 7-point checklist, ugly duckling sign.
Decision
Outcome
Decision
Pigmented skin lesion. Which features are suspicious?
✓
ABCDE: Asymmetry, Border irregularity, Color variation, Diameter ≥6 mm, Evolution
✓
Ugly duckling sign — one lesion stands out from others
✓
7-point checklist: ≥1 major (change in size/shape/color) or ≥3 minor
✗
Soft, mobile, not changing — automatically benign
Outcome
Excisional biopsy with narrow margins (1–3 mm) for histology
Definitive treatment by Breslow depth + sentinel lymph node biopsy.
Outcome
Same — excisional biopsy
Outcome
Same — excisional biopsy