A 36 year old woman is involved in a motor vehicle accident. She is - ProProfs Discuss
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A 36-year-old woman is involved in a motor vehicle accident. She is not wearing a safety belt and is ejeCTed from the vehicle. When paramedics arrive, her vital signs are stable with pulse 80/min, respirations 17/min, and blood pressure 125/80 mm Hg. On examination in the emergency department, she has multiple contusions and abrasions over the skin of her head, torso, and extremities. There is no papilledema, there is no decerebrate posturing, and she has no spontaneous movements. She is not conscious. CT scan of the head shows no intracranial hemorrhage or edema and no skull fraCTures. She remains in a persistent vegetative state. What lesion is most likely to be present in this patient?



A. Acute hydrocephalus
B. Cerebellar tonsillar herniation
C. Diffuse axonal injury
D. Hypoxic neuronal damage
E. Multiple cortical contusions
F. Myelinolysis
Asked by Madelyn on Sep 09, 2016

This question is part of

Pathology Review ch 28 CNS prt 3

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1 Answer

John Smith

John Smith

Answered on Sep 09, 2016

Diffuse axonal injury-(c) angular acceleration with torsional forces applied to white matter tracts can cause stretching and tearing of axons, followed by axonal swelling or retraction balls within hours. acute hydrocephalus requires a blockage of csf flow, and there is no mass lesion, hemorrhage, or brain swelling in this case. herniation requires brain swelling or a large hemorrhage or a mass that enlarges rapidly. hypoxic injury is most likely to affect neurons of the hippocampus, purkinje cells, and cortical neurons in watershed areas first; the patients vital signs suggest that this did not occur. contusions represent areas of superficial cortical hemorrhage. central pontine myelinolysis can occur from rapid correction of hyponatremia. bp7 819821bp8 869pbd7 13581359pbd8 1288
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