Question
Which type of intracranial hemorrhage is most likely depicted in the image given below?
| A. |
Extradural hemorrhage
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| B. |
Subarachnoid hemorrhage
|
| C. |
Subdural hematoma
|
| D. |
Intraparenchymal hemorrhage
|
Show Answer
|
Correct Answer » C
Explanation
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|
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The CT head image shows a crescent-shaped hyperdensity along the convexity of the cerebral hemisphere, located between the brain parenchyma and the skull.
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The hemorrhage does not cross the midline but does extend across suture lines, which is characteristic of a subdural hematoma.
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The red arrow is pointing to this crescentic collection, indicative of acute subdural bleeding.
Why Other Options Are Incorrect:
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A. Extradural (epidural) hemorrhage:
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Appears biconvex (lentiform) in shape.
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Does not cross suture lines, but can cross the midline.
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Often associated with temporal bone fractures and middle meningeal artery rupture.
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Not seen here.
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B. Subarachnoid hemorrhage (SAH):
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Blood typically accumulates in the basal cisterns, sulci, and interhemispheric fissures.
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Appears as hyperdensity within the CSF spaces.
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Not the pattern seen in this image.
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D. Intraparenchymal hemorrhage:
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Presents as a localized hyperdense area within the brain parenchyma.
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Does not show crescent shape.
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Commonly due to hypertension, amyloid angiopathy, or vascular malformations.
