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Brain Abscess l: Introduction

A brain abscess is a focal, intracerebral infection characterized by a localized collection of pus within the brain parenchyma, resulting from microbial invasion and the body’s inflammatory response. It progresses through stages: early and late cerebritis, followed by early and late capsule formation, reflecting tissue destruction, immune response, and eventual encapsulation.Etiology and PathogenesisCausative organisms vary with source and host factors, often involving polymicrobial infections,...
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Cerebral edema is a pathological increase in brain water content that disrupts intracranial pressure regulation and impairs neurological function. Because the cranial vault is rigid, even modest increases in tissue volume can compromise cerebral perfusion, distort neural structures, and initiate secondary injury. Cerebral edema develops through four principal mechanisms: vasogenic, cytotoxic, interstitial, and ionic.Vasogenic EdemaVasogenic edema arises from disruption of the blood–brain...
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Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this barrier loses...
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Endoscopic Approach for Colloid Cyst Resection
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[Calcified cerebral hydatid cyst].

K Abderrahmen1, M L Aouidj, J Kallel

  • 1Service de Neurochirurgie du Professeur Khaldi, Institut National de Neurologie (INN), 1 Rue Skhira, 2000 Le Bardo, Tunis, Tunisie. khansaabderrahmen@yahoo.fr

Neuro-Chirurgie
|October 2, 2007
PubMed
Summary

A rare calcified brain hydatid cyst caused drug-resistant seizures in a teen. Surgical removal led to seizure control, highlighting MRI

Area of Science:

  • Neurology
  • Radiology
  • Parasitology

Background:

  • Cerebral hydatid cysts are rare, accounting for 0.5-4.5% of brain cysts.
  • Calcified cerebral hydatid cysts are exceptionally infrequent, occurring in less than 1% of cases.

Observation:

  • A 15-year-old female presented with a 5-year history of medically refractory grand mal seizures.
  • Imaging revealed a calcified parieto-occipital lesion on CT and a suggestive detached membrane on MRI.

Findings:

  • Surgical intervention confirmed a calcified hydatid cyst with characteristic hydatid sand.
  • Post-operatively, the patient achieved seizure control with a single anti-epileptic drug.

Implications:

  • This case underscores the diagnostic utility of MRI in identifying rare cerebral hydatid cysts.

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  • Successful surgical management of calcified cerebral hydatid cysts can lead to significant clinical improvement and seizure remission.