hematoma caused by trauma Petechia, which is a small type of hematoma (<3 mm) Ecchymosis, which is a large type of hematoma (>1 cm) Purpura secondary to clotting disorders Purpura hemorrhagica in horses Pigmented purpuric dermatosis Schamberg disease (progressive pigmentary purpura) References External links Evaluating the Child with Purpura from American Academy of Family Physicians Dermatologic terminology Medical signs