2022年5月13日 · Typically crescentic (crescent moon-shaped, concave, banana-shaped) and more extensive than EDH, with the internal margin paralleling the cortical margin of the adjacent brain. As these occur in the subdural space, they cross sutures. EDH is treated with expedient evacuation via a craniotomy.

2024年11月10日 · In almost all cases, extradural hematomas are seen on CT scans of the brain. They are typically bi-convex (or lentiform) in shape, and most frequently beneath the squamous part of the temporal bone. EDHs are hyperdense, somewhat heterogeneous, and …

2023年7月31日 · An epidural hematoma (EDH) is an extra-axial collection of blood within the potential space between the outer layer of the dura mater and the inner table of the skull. It is confined by the lateral sutures (especially the coronal sutures) where the dura inserts.

2024年6月20日 · Extradural haematoma (EDH): acute haemorrhage between dura mater and skull, increasing intracranial pressure; can cause brainstem death. Aetiology: often due to skull trauma in the temporoparietal region; 75% linked to skull fractures, with the middle meningeal artery involved in most cases.

2000年12月1日 · Subjects and methods: The neuroradiologic studies of four patients (CT in four, MR imaging and MR venography in one) were evaluated for EDH shape, size and appearance. Results: EDHs were biconvex in three patients and crescentic in one patient. CT appearances included a collection that was hyperdense (two patients), generally isodense with a ...

2022年5月13日 · Differentiating extradural (EDH) from subdural (SDH) haemorrhage in the head is usually straightforward, but occasionally it can be challenging. SDHs are more common and there are a few distinguishing features which are usually reliable.

2024年2月5日 · Background Epidural hematomas (EDHs), which have a characteristic biconvex shape, are a type of post-traumatic intracranial mass. EDHs and other types of intracranial hematomas are often diagnosed with computed tomography (CT). The volumes of EDHs are important in treatment decisions and prognosis.

Extradural haematoma (EDH), also known as epidural haematoma, refers to a collection of blood in the extradural space between dura and skull. It is most often due to trauma and commonly associated with a skull fracture (75-95% of cases). EDH is most commonly due to trauma from a direct head injury.

An acute epidural hematoma (EDH) is a hyperdense (higher Hounsfield unit number), extra-axial (outside the brain parenchyma) blood collection that occurs after a coup injury. The “classical” EDH occurs from a laceration of the middle meningeal artery after blunt trauma and is biconvex (lens-shaped) in appearance.

2022年9月2日 · EDH and SDH are hyperdense compared to brain on CT (i.e., bright white compared to gray). EDHs are typically lentiform or biconvex in shape, located near the common sources of bleeding (middle meningeal artery or venous sinuses), and usually do not cross cranial sutures due to the rigid attachment of the dura at the suture lines (Fig. 1.1).