• Acute bi-convex extradural hematoma in right frontal region (yellow arrow). Mass effect causing effacement of adjacent sulci and frontal horn of right lateral ventricle.
• Few hemorrhagic contusions with vasogenic edema in left frontotemporal regions (red arrows).
• Fracture of frontal bone on right side extending into right parietal bone (white arrows).

Subdural hematoma

• concavo-convex in shape or crescent shaped
• it can cross suture lines
• caused by tear of bridging cortical veins

• Urgent neuro-surgical referral for surgical evaluation of the hematoma.

• Extradural or epidural hematoma is a blood collection between the skull and the dura.
• It is associated with head injury and is often caused by tear of the middle meningeal artery.
• It is lentiform or bi-convex in shape and doesn’t cross cranial sutures.
• Majority are supratentorial in location.
• It may cause significant mass effect when large. Such a large hematoma is a surgical emergency due to mass effect and herniation risk, small ones can be managed conservatively with follow-up imaging.
• Venous epidural hematomas are less common, caused by dural sinus laceration.

• Lee, B., & Newberg, A. (2005). Neuroimaging in traumatic brain imaging. NeuroRX, 2(2), 372–383. doi:10.1602/neurorx.2.2.372
• Schweitzer, A. D., Niogi, S. N., Whitlow, C. J., & Tsiouris, A. J. (2019). Traumatic Brain Injury: Imaging Patterns and Complications. RadioGraphics, 39(6), 1571–1595. doi:10.1148/rg.2019190076

 

Cite this article as:

Awal, S. S. (2023). Extradural hemorrhage | Radiology Case. radiologyvibes.com. Retrieved from https://radiologyvibes.com/case-details/1132