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Solar Lentigo Dermoscopy — SCE Dermatology MCQ

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HardSkin CancerSolar Lentigo DermoscopySCE Dermatology

A slowly enlarging macule on a chronically sun-damaged cheek shows asymmetric pigmented follicular openings, grey dots around follicles and developing rhomboidal structures. Which diagnosis is most likely?

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Correct answer: D — Lentigo maligna

Asymmetric follicular pigmentation, annular-granular grey dots and rhomboidal structures are important dermoscopic clues to lentigo maligna on facial skin. Pigmented actinic keratosis can overlap, so an equivocal or extensive lesion requires representative histological sampling.

Reference: https://www.nice.org.uk/guidance/ng14/chapter/recommendations