Dermaimaging

In a 36-year-old woman, on the gluteus

What to see at dermoscopy:

-homogeneous blue pattern
-blue-white veil that covers the entire lesion
Extirpation was suggested
Histopathological corelation: blue nevus

Comments: In the majority of cases, by historical and clinical presentation, the diagnosis of a blue nevus can be established unequivocally. Without a clear history of a stable lesion that is suggestive of a blue nevus, extirpation is mandatory to rule out nodular melanoma

In a 67-years-old man, on the arm

What to see at dermoscopy:

-homogeneous pattern with confluent blue-gray pigmentation
-the pigmentation fades into the surrounding skin
-blue-white veil
-focal areas of confluent hypopigmentation (might be associated with fibrosing blue nevus)
Excision was indicated.
Histopathological correlation: fibrosing blue nevus

In a 44-year-old woman, on the shoulder

What to see at dermoscopy:

-homogeneous pattern with confluent blue-gray  pigmentation
-the pigmentation fades into the surrounding skin
-blue-white veil
Dermoscopy revealed a homogeneous blue pattern in favor of blue nevus

In a 24-year-old woman, on the gluteal area

What to see at dermoscopy:

-homogeneous pattern with confluent blue-gray pigmentation
-the pigmentation usually fades into the surrounding skin
Dermoscopy revealed a homogeneous blue pattern in favor of  cellular blue nevus.

Comments: Follow-up is indicated considering the possibility of malignant change in cellular blue nevus (1-3 cm lesion).

In a 16-year-old woman, on the dorsa of hand

What to see at dermoscopy:

-homogeneous pattern with confluent blue-gray pigmentation
-the pigmentation fades into the surrounding skin
-blue-white veil
-focal areas of confluent hypopigmentation (might correspond to fibrosis areas)
Dermoscopy revealed a homogeneous blue pattern in favor of cellular blue nevus
Follow-up indicated.