Pyogenic granuloma is a misnomer describing a benign proliferation of capillary blood vessels of the skin and oral cavity. It characteristically presents as a small painless red fleshy nodule that grows rapidly over a few weeks. Pyogenic granuloma is known to bleed easily with minor trauma.
Keloids are a form of scar. They are characteristically firm, smooth, hard growths and commonly arise but extend out from sites of injury especially on the upper chest and shoulders.