A male paient was hit int he head by a fast pitch baseball. You can now palpate the large mass just beneath the patient's scalp where the ball hit. The patient has a headache but is currently alert and oriented. This is MOST likely what type of injury?
A. Crush injury.
B. Contusion.
C. Stellage.
D. Hematoma.
Answer: D. Hematoma.
A hematoma is characterized by a large lump with bluish discolouration cause by blood collecting beneath the skin. A contusion, or bruise, is an injury to the tissue and blood vessels contaminated within the dermis and a crush injury is one in which force great enough to cause injury has been applied to the body. Severe blunt trauma or crushing force can cause serious damage to the underlying soft tissue with associated internal bleeding and may result in hemorrhagic shock.
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