
A 70-year-old woman consulted for this light-brown pigmented lesion on her left cervical area.

Dermoscopy revealed
slate-gray dots disposed in an
annular-granular pattern in favor of a
lentigo maligna melanoma which was confirmed by biopsies performed on the lesion.

This case of
lentigo maligna melanoma (LMM) exhibited only a feature of
annular-granular pattern.

Annular-granular structures can be seen in:
- lichen planus-like keratosis
- actinic keratosis
The other possible features of
lentigo maligna melanoma are:
- asymmetric pigmented follicular openings
- dark rhomboïdal structures
- homogeneous areas
Other cases:
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