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Sunday 20 July 2008

Comma vessels

This is a case of dermal nevus located on the back of a woman.

Comma vessels are well observed on this picture taken with a polarized light dermoscope. Milia-like cysts are present but they are less marked than on pictures taken with dermoscope using immersion principle.

Comma vessels are frequently observed in dermal nevi but can be observed too in atypical nevi.