D. Stab wound.
Commonly known as a bruise, is a type of hematoma of tissue in which capillaries and sometimes venules are damaged by trauma, allowing blood to seep, hemorrhage, or extravasate into the surrounding interstitial tissues.
- Patterned bruise
Hammer – round
Rod, stick or whip – tram line bruise
- Delayed or Come-out bruise: a deeply situated bruise may manifest externally only after several hours or days or after death
- 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
TYPES OF WOUND
- Contusion – bruising or haemorrhage. Caused by a blow from something blunt
- Abrasion – caused by skin being scraped along a hard surface
- Incision – clean cut/surgical. Skin, soft tissues and muscle may be severed
- Laceration – jagged edges e.g. from teeth, claws, barbed wire.
- Puncture – small entry. May have some internal damage and can become infected
- Tear/Avulsion – skin and soft tissue partially or completely torn away
- Cavity – chronic, open wound