June 27, 2010

MRCP 2 Question 2

Examine the diagram below carefully. Then choose the most correct answer from the choices below:

a) acute extradural hematoma
b) sub-acute acute extradural hematoma
c) acute subarachnoid hematoma
d) subacute subdural hematoma
e) acute subdural hematoma

The correct answer is D


Subdural hematomas which become symptomatic between 3 days and 3 weeks after initial injury are considered subacute.

Compared to the normal brain parenchyma, subacute subdural hematomas appear isodense to low density. These collections may be subtle, especially if they are bilateral.

Medial displacement of the gray-white matter interface is an important finding to identify.

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