Slow growth, painlessness (as the ulcer is usually not associated with nerve tissue), and absence of lymphatic spread due to local destruction of lymphatic channels. Museum specimen of<unk>  on the sole of a foot
Marjolin's ulcer
Martorell's ulcer
Hunner's ulcer
Curling's ulcer
Lipschütz ulcer
Dieulafoy's lesion
Butcher's wart
Dercum's disease