Spitz nevus

A 47-year-old woman consulted for a a slowly enlarging pigmented lesion of her right wrist for 3 months.


Dermoscopy (x20) revealed regular streaks throughout the lesion (pseudopods and radial streaming) with a symmetrical starburst pattern.

Because of the age of the patient and the rapid enlargement, the lesion was removed.

Pathology revealed a Spitz nevus

Lentigo maligna melanoma

A 69-year-old woman consulted for a macular pigmented lesion of her right cheek. This multicoloured lesion was centered by a dark brown spot.




Dermoscopy focused on the darker area showed annular granular structures, asymetric follicular openings and rhomboidal structures very suggestive of lentigo maligna melanoma.


A biopsy was performed on the dark brown spot and revealed a lentigo maligna melanoma in situ.


The lesion was entirely removed and a graft was performed.
The pathology exam of the whole lesion revealed a breslow index at 0.46mm

Subcorneal hematoma

this 45-year-old patient, bricklayer, consulted for this asymptomatic black lesion on his right heel that he noticed one month ago;the patient did not practice any sports. He used to wear security shoes during his work time. He complained of the hard soles of his shoes.



Dermoscopy (x20) showed a brown light parallel ridge pattern.
The band-like pigmentation is seen on on the ridges of the skin markings. The whitish dots are regularly distributed on the ridges and represent the openings of eccrine ducts.
On the lower site of the lesion, there are many red dots (satellites) allowing to diagnose a subcorneal hematoma or "black heel"
A clue for the diagnosis would be also performing scratching with a blade, because the hematoma is very superficially located .
It is important to remind that the parallel ridge pattern is mainly observed in acrolentiginous melanoma.
The 4 pictures concern the same case of subcorneal hematoma.

Atypical nevus

A 40-year-old man consulted for this atypical mole of the intermammary region, without recent changing.
Dermoscopy (x20) showed a combination of two patterns:

1-on the left: an homogenous pattern with comma vessels

2- on the right: a reticular pattern with blue white veil




The lesion was removed and pathology revealed a benign irritated compound nevus with lateral junctionnal extension

superficial spreading melanoma

This case concerned a 59-year-old patient: this pigmented lesion of his right thigh was discovered during a consultation for condylomas. The patient was not conscious of this lesion.

On dermoscopy (x 20) : Multicomponent pattern, irregular pigment network, blue white veil very irregular, irregular streaks (bottom) irregular dots and globules.

Other cases of melanoma
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superficial spreading melanoma

A 84-year-old man presenting many seborrheic keratoses, developed a slowly enlarging pigmented lesion of the abbdomen













On dermoscopy (x20): asymetric lesion with atypical globular pattern, irregular dots and globules at 3 o clock (right side) , and blue white veil

The lesion was removed and pathologist concluded to a superficial spreading melanoma Breslow index 0.28mm

Other cases of melanoma
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

basal cell carcinoma (pigmented)

A 30-year-old man consulted for this pigmented lesion on his back.




















On dermoscopy: multi-component pattern with blue gray globules, blue-gray ovoïd nests, leaf-like areas (upper left quadrant) and arborizing vessels