<unk>  may be present at birth or may develop during the first weeks of life, originating as a brown macule that urticates on stroking.:615
Solitary mastocytoma
Mycetoma
Oncocytoma
Pyogenic granuloma
Littoral cell angioma
Mast cell tumor
Pleomorphic xanthoastrocytoma
Malignant fibrous histiocytoma