What is difference between SDH and EDH?

Extradual hematoma (EDH) is the collection of blood between the inner skull table and dura, and appears as a biconvex-lens shape on imaging. In comparison to EDH, the subdural hematoma (SDH) is a collection of blood between the dura and arachnoid membrane and it has a biconcave-lens shape on imaging.

What does EDH mean in medical terms?

An epidural hematoma (EDH) is bleeding between the inside of the skull and the outer covering of the brain (called the dura).

Can EDH cross suture line?

Extradural hemorrhages can, however, cross and elevate venous sinuses as long as there is no suture there; after all a venous sinus is located between the parietal and visceral layer of the dura. Unfortunately, these rules are not foolproof and not infrequently extradural hematomas do cross sutures.

What is the EDH CT scan?

Epidural hematoma (EDH) is defined as hemorrhage into the potential space between the dura, which is inseparable from cranial periosteum, and the adjacent bone. EDH can occur intracranially or intraspinally and can result in clinically significant morbidity and/or mortality if it is not diagnosed and treated promptly.

Can EDH cross sutures?

Objectives: Epidural hematoma (EDH) is secondary to laceration of meningeal vessels (arteries or veins), diploic veins or dural sinuses in head injuries. It is widely believed that EDH does not cross cranial sutures, allowing its differentiation from subdural hematoma (SDH).

Is an epidural hematoma a TBI?

Epidural hematoma (EDH) is a traumatic accumulation of blood between the inner table of the skull and the stripped-off dural membrane. EDH results from traumatic head injury, usually with associated skull fracture and arterial laceration.

Is epidural hematoma venous or arterial?

This bleeding may be either arterial or venous. The classic epidural hematoma is observed with a linear skull fracture of the temporal bone, which tears the middle meningeal artery, allowing blood to accumulate under pressure in the epidural space. However, sizable epidural hematoma of venous origin may also occur.