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Parietal cephaloceles: radiographic and magnetic resonance imaging evaluation
1Department of Radiology, Duke University Medical Center, Durham, N.C.
Insights
Parietal encephaloceles in infants can be associated with hindbrain deformities like Dandy-Walker malformation. Magnetic resonance imaging (MRI) is crucial for diagnosing these complex congenital brain abnormalities.
Area of Science:
- Neurology
- Pediatric Neurosurgery
- Medical Imaging
Background:
- Parietal encephaloceles are rare congenital herniations of brain tissue through skull defects.
- Early diagnosis and management are critical for infants with cephaloceles.
Observation:
- Three pediatric patients with parietal encephaloceles were evaluated between 1984-1987.
- All presented with painful vertex swelling within the first two years of life.
- Associated hindbrain deformities included Dandy-Walker malformation and Chiari II malformation.
Findings:
- All three patients developed hydrocephalus.
- Magnetic resonance imaging (MRI) proved superior for evaluating cephalocele communication with intracranial structures and venous anomalies.
- Skull films and computed tomography (CT) were also utilized.
Implications:
- MRI is the imaging modality of choice for parietal encephaloceles, offering detailed sagittal views of the posterior fossa and craniocervical junction.
- Accurate diagnosis of associated anomalies is vital for appropriate surgical planning and patient outcomes.
- Understanding these associations aids in managing complex pediatric neurological conditions.
Abstract:
Three patients with parietal cephaloceles underwent evaluation and treatment at Duke University Medical Center between 1984 and 1987. All presented within the first 2 years of life with painful swelling near the vertex of the head. All patients had skull films and computed tomography, and two underwent magnetic resonance imaging (MRI). All 3 children had associated hindbrain deformities; two with Dandy-Walker malformation, the third with a Chiari II malformation. Each child eventually developed hydrocephalus. MRI is the procedure of choice to evaluate these patients, providing direct sagittal imaging of the posterior fossa and craniocervical junction, and displaying communication of the cephalocele with intracranial structures as well as associated venous vascular anomalies.