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Ossified Occipital Pseudomeningocele following Ventriculoperitoneal Shunt Malfunction
Anusha S Bhatt1, Ajit M Mishra2, Radhika Mhatre1
1Department of Neuropathology, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.
Insights
Ossification of pseudomeningocele, a rare complication of ventriculoperitoneal shunts, can cause increased intracranial pressure. Early suspicion in patients with shunt malfunction is crucial for appropriate management.
Area of Science:
- Neurosurgery
- Pediatric Neurology
- Radiology
Background:
- Ventriculoperitoneal (VP) shunts are used to treat conditions like aqueductal stenosis.
- Shunt malfunction can lead to serious complications, including raised intracranial pressure.
- Pseudomeningocele, a collection of cerebrospinal fluid, can form after shunting procedures.
Observation:
- A 12-year-old boy presented with symptoms of increased intracranial pressure due to VP shunt malfunction.
- Computed tomography revealed ventriculomegaly and a hypodense collection with calcification.
- Histopathology confirmed the presence of ossification within the pseudomeningocele.
Findings:
- Ossification of pseudomeningocele is an uncommon complication following VP shunt placement.
- This ossification can contribute to shunt malfunction and elevated intracranial pressure.
- The case highlights a rare radiological and pathological finding in pediatric neurosurgery.
Implications:
- Suspecting ossified pseudomeningocele is vital in pediatric patients with shunt malfunction and worsening symptoms.
- Accurate diagnosis impacts treatment strategies, differentiating it from uncomplicated pseudomeningocele.
- This entity requires consideration in the differential diagnosis of VP shunt complications.
Abstract:
Ossification of pseudomeningocele is a rare occurrence and is one of the rare complications of ventriculoperitoneal (VP) shunt malfunction. We report a case of 12-year-old boy who came with features of raised intracranial pressure following shunt malfunction which was placed as a treatment to the aqueductal stenosis. Computed tomography showed ventriculomegaly and hypodense collection in the occiput with posterior rim of calcification. The findings were confirmed on histopathology. Although ossified pseudomeningocele is a rare entity following VP shunt placement, it should be suspected if patients present with aggravated symptoms, especially if there is shunt malfunction as the treatment option varies with the presence or absence of resultant symptoms and ossification.
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