Description: Pigmented lesion on knee

History: This lesion which has grown rapidly in the last 4 months on the knee of a 14 months old boy. Nothing there before. No other nevi whatsoever. No family history of abnormal nevi or melanoma.
This lesion has a -central lighter area + subtle bluish/grey areas(centrally) -starburst pattern of tan + dark globules radiating out around the periphery. These are classic features of spitz naevi. Benign spitz naevi should be symmetrical + have symmetry of globules or streaks at all points along the periphery. This lesion has asymmetry of the black globules at the periphery and ?should be excised. View the Blog discussion of this case