In a 5-year-old male patient a new, rapidly changed and different pigmented skin tumour (4x5mm) appeared on his left lower leg. Low UV-exposure and no injury was reported. He had skin type II, about 5 non suspicious nevi, no history of melanoma in his life or his family.

In dermsocopy an asymmetric tumour with incomplete star burst pattern in the upper 2/3-area was visible. This star burst pattern is due to radial streaks and pseudopods-like structures, respectively. In the centre and lower 1/3-area the tumour is clearly depigmented.

In the control image three months later, the same tumour with the same size is nearly depigmented. Now, the more central located globules are better visible.

Dermoscopical diagnose
Reed nevus

Remarks
At least I recommend a re-image of any asymmetric presented Reed nevi in the period of two to three months or better, if possible, a total excision.
Please keep in mind that invasive melanomas can also occur in childhood.

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Prof. Dr. A. Blum
Seestrasse 3a
78464 Konstanz
Germany

a.blum[at]derma.de
www.hautarzt-konstanz.de