In a 63-year-old man, on the scalp
What to see at dermoscopy:
-strawberry appearance
-annular-granular pattern
-hyperkeratosis at the low portion of lesion
-incontinentia pigmenti
Dermoscopy in favor of pigmented actinic keratosis
Comment: biopsy was suggested to rule out a squamous cell carcinoma
In a 56-year-old woman, on the nose
What to see at dermoscopy:
-pseudonetwork
-irregular pigmentation around follicular opening (circle)
-erythema
-finguerprint-like structures
-moth-eaten border
Biopsy at the irregular pigmentation (circle area) was indicated to rule out a lentigo melanoma
Histology correlation: actinic keratosis
Comment: the finding of finguerprint-like structures and the moth-eaten border indicates the possibility of coexistence of a solar lentigo beside the actinic keratosis.
In a 76-year-old woman, on the leg (rapid evolution)
What to see at dermoscopy:
-multicomponent pattern
-globules
-radial streaming (arrow)
-irregular vessels
-chrysalis structures (circle)
-blue-white veil
-blotches
Extirpation was indicated
Dermoscopy in favor of melanoma
In a 66-year-old man, on the shoulder
What to see at dermoscopy:
-reticular pattern
-radial streaming (circles)
-hypopigmented areas
-irregular pigmentation
Extirpation was indicated and histology correlation was a dysplastic nevus