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Related Concept Videos

Cranial and Spinal Meninges01:19

Cranial and Spinal Meninges

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The cranial and spinal meninges are complex protective structures surrounding the central nervous system (CNS), consisting of the brain and spinal cord. These meninges consist of the dura mater, the arachnoid mater, and the pia mater. They protect the CNS, provide structural support, and aid in circulating cerebrospinal fluid (CSF).
Cranial Meninges
These meningeal layers cover the cranium. The dura mater is the outermost layer of cranial meninges. It is a thick and durable membrane of dense...
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Related Experiment Video

Updated: Apr 9, 2026

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model
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Giant Subdural Abscess After Head Trauma.

Daisuke Sugawara1, Yoshihiro Aoki1,2, Yuki Matsunaga3

  • 1Department of Emergency Medicine Nagasaki Harbor Medical Center Nagasaki Japan.

Clinical Case Reports
|April 8, 2026
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Summary
This summary is machine-generated.

Infected subdural hematoma from bacterial spread is rare and mimics bleeding on CT scans. Prompt surgical drainage is crucial for unexplained subdural collection enlargement in patients with bacteremia.

Keywords:
Streptococcus pneumoniaecerebral hemorrhagepneumococcal meningitisseizuresubdural abscess

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Area of Science:

  • Neurology
  • Infectious Diseases
  • Radiology

Background:

  • Infected subdural hematoma (ISDH) is a rare condition.
  • Distinguishing ISDH from hemorrhagic progression on CT scans is challenging.

Purpose of the Study:

  • To highlight the diagnostic difficulties of ISDH.
  • To emphasize the importance of considering secondary infection in subdural collections.

Main Methods:

  • Review of clinical presentations and imaging findings of ISDH.
  • Comparison with hemorrhagic progression of subdural hematomas.

Main Results:

  • ISDH can be mistaken for simple hemorrhagic progression on CT.
  • Bacteremia is a key indicator for potential secondary infection.

Conclusions:

  • Clinicians must consider ISDH in patients with bacteremia and unexplained subdural collection enlargement.
  • Prompt surgical drainage is recommended for suspected ISDH.