In a 42-year-old man, on the forehead
What to see at dermoscopy:
-arborizing vessels and fine telangectasias
-blue-gray globules
-scar-like depigmentation
-ulceration with congealed blood
-erythema
-chrysalis structures
Biopsy was suggested.
Histopathology correlation: basal cell carcinoma with follicular differentiation
?
In a 42-year-old woman, on the heel
What to see at dermoscopy:
-irregular diffuse pigmentation as prevalent dermoscopic feature
-scar-like depigmentation and erythema
-white dots correspond to ecrine duct openings
Biopsy at one pigmented place was indicated and histopathology confirmed acral melanoma
Comments: diffuse irregular pigmentation is more suggestive of invasive acral melanomas.
For more information: “Dermoscopic changes in acral melancytic nevi during digital follow-up”,
Altamura D. et al in Arch Dermatol 143(11): 1372-1376, 2009
In a 54-year-old man, on the lip (multiple lesions)
What to see at dermoscopy:
-multiple blue-red lacunae that are tightly clustered
Biopsy was suggested
Histopathological correlation: venous hemangioma
In a 73-year-old woman, on the forearm
What to see at dermoscopy:
- erythema and structureless areas
- regression areas (melanosis or peppering)
- linear scar-like depigmentation
Biopsy was suggested
Histopathological correlation: solar lentigo (lichen planus-like keratosis)
Comments: the presence of a linear scar-like depigmentation could be associated with secondary trauma.