Multimedia
 | Media file 1: Axial head computed tomography scan demonstrates a skull fracture with an adjacent, small subdural hematoma. Window and level values are widened over standard values, which aids in the detection of small hemorrhages. |
 | Media file 2: Subacute subdural hematoma with extension into the anterior interhemispheric cistern. Note that the sutures do not contain the spread of these hemorrhages. |
 | Media file 3: Tentorial subdural hematoma in an adult with trauma. In children with this pattern of injury, abuse should be considered. |
 | Media file 4: Subdural hematoma with adjacent subarachnoid hemorrhage was the result of a ruptured middle cerebral artery aneurysm. Aneurysms are unusual causes of subdural hematomas. |
 | Media file 5: Late subacute subdural hematoma has decreased attenuation compared with adjacent brain tissue. Attenuation of the hematoma remains higher than that of cerebrospinal fluid. |
 | Media file 6: Computed tomography scan in a patient with a subacute right frontal subdural hematoma. The blood has the same attenuation as that of the adjacent gray matter and is difficult to distinguish. Note that the gray matter–white matter junction is displaced medially, and midline shift is seen, indicating the presence of a space-occupying extra-axial lesion. |
 | Media file 7: Late subacute-to-chronic subdural hematoma with a blood-fluid level indicating acute hemorrhage into the chronic collection. |
 | Media file 8: Axial computed tomography scan demonstrates the benign enlargement of the subarachnoid space that occurs in children. The extra-axial fluid does not cause mass effect and normally resolves within the first 2 years of life. |
 | Media file 9: Axial T1-weighted magnetic resonance imaging demonstrates bilateral subacute subdural hematomas with increased signal intensity. Areas of intermediate intensity represent more acute hemorrhage into the subacute collections. |
 | Media file 10: T2-weighted magnetic resonance imaging in a patient with subdural hematoma shows blood products of differing ages (same patient as in Image 8). |
 | Media file 11: T2-weighted magnetic resonance imaging in a patient with a subdural hematoma and rebleeding clearly shows hemorrhages of 3 different ages; these are hyperintense, isointense, and hypointense relative to brain tissue. |
 | Media file 12: Computed tomography (CT) scan demonstrating a patient with subdural hematomas of varying ages. This patient had a CT 1 week prior that demonstrated a chronic subdural hematoma (represented by the low density fluid on this study). Over the next week, his clinical condition progressively declined, then he collapsed shortly before this image was obtained. The gray blood represents subacute hemorrhage, whereas the white blood represents acute. |
More on Subdural Hematoma |
| Overview: Subdural Hematoma |
| Imaging: Subdural Hematoma |
| Follow-up: Subdural Hematoma |
 Multimedia: Subdural Hematoma |
| References |
| Further Reading |
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References
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Further Reading
Related eMedicine topics
Subdural Hematoma (from Emergency Medicine)
Subdural Hematoma (from Neurology)
Subdural Hematoma (from Neurosurgery)
Subarachnoid Hemorrhage
Epidural Hemorrhage
Clinical guidelines
Surgical Management of Acute Subdural Hematomas
Clinical and other studies
Teen Online Problem Solving (TOPS) - An Online Intervention Following TBI
Keywords
subdural hematoma, SDH, subdural hemorrhage, subdural bleed, brain hemorrhage, intracranial hemorrhage, extraaxial hemorrhage, extra-axial hemorrhage, intracranial hemorrhage, cranial bleeding, head trauma, brain injury, brain trauma, acute subdural hematoma, subacute subdural hematoma, chronic subdural hematoma, shaken baby syndrome, shaken-baby syndrome, child abuse
