Tags: Disease.
An ecchymosis (/ˌɛkɨˈmoʊsɪs/; Ancient Greek: ἐκχύμωσις from ἐκ out and χέω I pour) (noun) e-ki-ˈmō-səs is a subcutaneous purpura (extravasation of blood) larger than 1 centimeter or a hematoma commonly but erroneously called a bruise. That is bruises are caused by trauma whereas ecchymoses a type of purpura are not caused by trauma.A broader definition of ecchymosis is the escape of blood into the tissues from ruptured blood vessels.