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A Protocol for Rapid Post-mortem Cell Culture of Diffuse Intrinsic Pontine Glioma (DIPG)

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Diffuse pontine astrocytoma with lipocytic differentiation.

Randall Craver¹, Christopher Arcement, Tammuella Chrisentery Singleton

¹Department of Pathology, Louisiana State University School of Medicine, New Orleans, LA ; Children's Hospital, New Orleans, LA.

Ochsner Journal

|October 11, 2012

Summary

A rare lipocytic astrocytoma, initially low-grade, proved fatal in a child despite standard treatment. This case highlights that lipoastrocytomas may share the prognosis of their underlying astrocytoma subtype.

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Area of Science:

Neuro-oncology
Pediatric Pathology
Cancer Biology

Background:

Diffuse pontine gliomas are aggressive brain tumors in children.
Astrocytomas can exhibit lipocytic differentiation, a feature not fully understood in pediatric cases.
Treatment for diffuse pontine glioma typically involves radiation and chemotherapy.

Observation:

A 7-year-old boy with diffuse pontine glioma received radiation and chemotherapy.
Autopsy revealed a diffuse grade II fibrillary astrocytoma with significant lipocytic differentiation.
Despite initial low-grade classification, the lipoastrocytoma was the cause of death.

Findings:

Lipocytic differentiation in low-grade astrocytomas is observed across diverse patient demographics and tumor characteristics.

Keywords:

Astrocytoma lipoastrocytoma pontine glioma

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While often benign, this case demonstrates a fatal outcome for a lipoastrocytoma.

The tumor's aggressive behavior suggests its prognosis mirrors that of its underlying astrocytoma subtype.

Implications:

The prognostic significance of lipocytic differentiation in astrocytomas requires further investigation.
Clinical management and surveillance strategies for low-grade astrocytomas with lipocytic features may need re-evaluation.
This case underscores the importance of considering the underlying histology when predicting outcomes for rare tumor variants.