A reddish "mole" that is small and round and raised may represent a hemangioma, seen here to be composed of small vascular spaces in the upper dermis. The small vascular channels, which may vary in size and shape, are lined by flattened endothelial cells. These lesions appear to change slowly, if at all, over time and seem to have been present as long as anyone can remember.

  • Capillary hemangioma: The vascular spaces are small or collapsed, as abpve. and the intervening loose connective tissue stroma may contain larger arterioles or venules

  • Cavernous hemangioma: There are large, dilated vascular spaces that may extend to the underlying adipose tissue