A. Friction abrasion.
B. Patterned abrasion.
C. Imprint abrasion.
The condition shown in the picture above represents black eye which occur due to contusion.
Black eye (periorbital hematoma)is bruising around the eye , caused by bleeding beneath the skin , around the eye.
- Is an effusion of blood into tissues due to rupture of subcutaneous vessel.
- It is a superficial injury.
- Migratory or Ectopic or Percolated contusions: injury at one site, contusion at a remote site due to gravitation of blood
Fracture of floor of anterior cranial fossa – bruising around eye (black eye or spectacle hematoma)
Fracture of floor of middle cranial fossa – bruising over mastoid (battle’s sign)
Fracture of jaw – bruising in the neck
Fracture of pelvis – bruising over thigh
Fracture femur – bruise in lower thigh or above knee
Calf injury -bruise in ankle.