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Diffuse leptomeningeal oligodendrogliomatosis: radiologic/pathologic correlation
D M Armao1, J Stone, M Castillo
1Department of Radiology, University of North Carolina School of Medicine, Chapel Hill 27599, USA.
Abstract:
We present the radiologic and pathologic findings in a boy who presented with diffuse leptomeningeal enhancement and whose clinical status deteriorated over the course of 5 years. During this period, MR images showed progression of the enhancement in the subarachnoid spaces, formation of intraaxial cysts, and hydrocephalus. Autopsy findings revealed diffuse oligodendroglioma throughout the leptomeninges of the brain and spine, with no definite intraaxial focus. The radiologic and pathologic features of diffuse leptomeningeal oligodendrogliomatosis are reviewed.
Insights
This case study details a rare oligodendroglioma spreading through the brain and spine's meninges. Imaging showed worsening enhancement and cysts, confirmed by autopsy in a pediatric patient.
Area of Science:
- Neuropathology
- Neuroradiology
- Pediatric Oncology
Background:
- Diffuse leptomeningeal gliomatosis is a rare condition.
- Oligodendroglioma is a type of glial tumor.
- Accurate diagnosis is crucial for patient management.
Observation:
- A pediatric patient presented with progressive neurological decline over five years.
- Magnetic resonance (MR) imaging revealed diffuse leptomeningeal enhancement.
- Subsequent MR imaging demonstrated intraaxial cyst formation and hydrocephalus.
Findings:
- Autopsy confirmed diffuse oligodendroglioma infiltrating the leptomeninges of the brain and spine.
- No distinct intraaxial tumor focus was identified.
- The findings highlight the challenges in diagnosing diffuse leptomeningeal oligodendrogliomatosis.
Implications:
- This case underscores the importance of considering rare diagnoses in progressive neurological conditions.
- Radiologic and pathologic correlation is essential for understanding diffuse leptomeningeal tumor spread.
- Further research into the pathogenesis and treatment of leptomeningeal oligodendroglioma is warranted.