hematoma
localized collection of blood outside the blood vessels
ecchymosis
type of purpura, not necessarily caused by trauma
spinal epidural hematoma
medical condition
Welts
elongated bruises on skin
Nasal septal hematoma
bleeding under the mucous membrane of the nasal septum, most often as a result of trauma
rectus sheath hematoma
accumulation of blood in the sheath of the rectus abdominis muscle