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INTERNATIONAL JOURNAL OF RESEARCH AND INNOVATION IN APPLIED SCIENCE (IJRIAS)
ISSN No. 2454-6194 | DOI: 10.51584/IJRIAS |Volume X Issue IX September 2025
Primary Pediatric Spinal Cord Glioblastoma: A Case-Based Insight
into Diagnostic and Therapeutic Challenges
Ayari Jihen
1
, Achoura Sameh
2
, Balti Mehdi
3
, Haddaoui Abderrazek
4
Department of Medical Oncology, Military Hospital of Instruction, Tunisia
DOI:
https://doi.org/10.51584/IJRIAS.2025.100900060
Received: 06 September 2025; Accepted: 13 September 2025; Published: 16 October 2025
ABSTRACT
Background: Primary intramedullary glioblastoma (scGBM), is exceedingly rare in children, accounting for
1.5% of pediatric spinal cord tumors. These highly aggressive neoplasms are associated with rapid neurological
decline and dismal prognosis.
Case presentation: We report a 12year‑old boy with progressive tetraparesis, headaches, and cervical pain.
MRI demonstrated a cervico-medullary intramedullary mass extending to C7 with heterogeneous enhancement
and hemorrhagic components. Subtotal resection was achieved via suboccipital craniectomy and C1C5
laminectomy. Histopathology confirmed glioblastoma (WHO grade IV). No adjuvant therapy was administered.
The patient developed worsening respiratory dysfunction and succumbed to disease four months after diagnosis.
Conclusion: This case highlights the fulminant course of pediatric scGBM, the critical role of molecular
profiling, and the therapeutic value of multimodal approaches including radiotherapy and chemotherapy.
Multicenter registries and prospective pediatric trials are urgently needed to improve evidence‑based
management.
INTRODUCTION
Primary spinal cord glioblastoma (scGBM) in children represents a rare diagnostic and therapeutic challenge,
accounting for only ~1.5% of pediatric spinal cord tumors. Prognosis is poor, with median survival typically
below 14 months despite aggressive treatment. The introduction of the 2021 WHO classification and increasing
emphasis on molecular profiling have reshaped the understanding of these tumors, yet management remains
extrapolated from intracranial glioblastoma protocols or limited pediatric series. We present a fulminant pediatric
case and discuss diagnostic, therapeutic, and prognostic considerations in the context of recent literature.
Case Presentation:
A 12‑year‑old boy with no prior medical history presented with two months of headaches, cervical pain, and
progressive weakness of all four limbs. On admission, he exhibited tetraparesis and respiratory distress.
Spinal MRI revealed an intramedullary lesion extending from the cervicomedullary junction to C7 . The lesion
appeared hypointense on T1, hyperintense on T2, with heterogeneous gadolinium enhancement and hemorrhagic
components (figure1,2). Subtotal resection was performed via suboccipital craniectomy and C1C5
laminectomy.
Histopathological analysis confirmed glioblastoma (WHO grade IV). No adjuvant radiotherapy or chemotherapy
was given. Postoperatively, the patient developed progressive respiratory and autonomic dysfunction and died
four months after diagnosis.
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INTERNATIONAL JOURNAL OF RESEARCH AND INNOVATION IN APPLIED SCIENCE (IJRIAS)
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Figure 1: Cervical MRI, sagittal T2-weighted sequence showing an intramedullary hyperintense lesion
expanding the spinal cord diameter between C1 and C7.
Figure 2: Cervical MRI, axial T2-weighted sequence showing an intramedullary hyperintense lesion
predominantly lateralized to the right.
DISCUSSION
Epidemiology and Prognosis:
Primary pediatric spinal cord glioblastoma (scGBM) is exceedingly rare, accounting for <0.1% of pediatric CNS
malignancies [13]. Contemporary systematic reviews consistently report median overall survival ranging
between 9 and 14 months, underscoring the dismal prognosis [13]. Tumor location has strong prognostic
implications: cervical and cervicomedullary lesions are associated with early respiratory compromise and
increased mortality [2,3]. Other prognostic determinants include age, preoperative neurological status, and extent
of surgical resection. Younger patients and those undergoing maximal safe resection tend to achieve superior
outcomes [3,4]. These findings emphasize the need for early recognition and aggressive, multimodal treatment
strategies.
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Radiological and Pathological Features:
MRI with gadolinium remains the diagnostic cornerstone, typically revealing T1 hypointensity, T2
hyperintensity, and heterogeneous enhancement with necrotic or hemorrhagic components [5]. Leptomeningeal
dissemination is present in up to 40% of cases, mandating neuraxis-wide MRI and, when feasible, cerebrospinal
fluid (CSF) cytology [5]. Our case lacked craniospinal staging, representing a limitation.
Histomolecular profiling is increasingly recognized as indispensable. Many pediatric scGBMs harbor H3 K27
alterations, categorizing them as diffuse midline gliomas (DMG) with uniformly poor prognosis [6]. Additional
recurrent alterations include TP53 mutations and PDGFRA amplification, while actionable mutations such as
BRAF V600E or NTRK fusionsalthough rareoffer potential for targeted interventions [7,8]. The absence
of molecular testing in the present case precluded definitive classification and trial eligibility, limiting
therapeutic opportunities.
Therapeutic Strategies:
Maximal safe resection remains the primary therapeutic intervention, aiming to relieve mass effect and preserve
function. However, true gross total resection is achieved in a minority of cases due to the infiltrative nature of
scGBM and eloquent tumor location. Intraoperative neurophysiological monitoring is recommended to minimize
morbidity [9,10].
Adjuvant radiotherapy represents the cornerstone of postoperative management and has been shown to
significantly prolong survival compared with surgery alone. Conformal techniques, including intensity-
modulated radiotherapy (IMRT) and proton beam therapy, allow delivery of adequate tumoricidal doses within
spinal cord tolerance [11]. Craniospinal irradiation is considered in cases with leptomeningeal dissemination
[12].
The Stupp regimenradiotherapy with concomitant temozolomide followed by adjuvant temozolomide
remains the most widely adopted systemic therapy, though pediatric-specific evidence is limited [13]. Recent
meta-analyses suggest modest benefit when combined with radiotherapy [1]. Novel therapeutic avenues under
investigation include epigenetic modulators, such as panobinostat, and immune checkpoint inhibitors,
particularly for H3 K27-altered tumors [7,14].
The most recent meta-analysis with Da Cunha et al[1] demonstrated that patients receiving multimodal therapy
(surgery plus radiotherapy ± chemotherapy) had superior survival compared with surgery alone (median PFS
15.2 vs. 2.1 months), with a consistent overall survival advantage across series [1]. By contrast, our patient,
treated without adjuvant therapy, experienced rapid decline and represents the poorest-prognosis subgroup,
aligning with the literature.
In addition to disease-directed therapies, postoperative supportive management is criticalparticularly for
cervicomedullary lesions with high risk of respiratory failure. Evidence supports proactive strategies including
close respiratory monitoring, early tracheostomy when indicated, intensive physiotherapy, nutritional support,
and prevention of infectious complications [5,10]. Such measures may improve short-term survival and quality
of life. The rapid respiratory deterioration observed in our case highlights the importance of early
multidisciplinary supportive interventions.
Recent systematic reviews and meta-analyses [13] reinforce several recurring themes: the extreme rarity and
aggressiveness of pediatric scGBM, survival advantage with radiotherapy and combined chemoradiation, strong
prognostic weight of cervical location and leptomeningeal dissemination, and the crucial role of histomolecular
profiling to refine diagnosis and guide therapy. Our case exemplifies the poor outcomes observed in patients
treated with surgery alone, underscoring the pressing need for standardized multimodal protocols.
CONCLUSION
Primary pediatric spinal cord glioblastoma remains a devastating malignancy with poor prognosis. This case
highlights the prognostic weight of tumor location and the limitations of surgery alone. Contemporary
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management emphasizes histomolecular diagnosis and multimodal therapy, though survival benefits remain
modest. Future progress depends on multicenter registries, prospective pediatric trials, and integration of targeted
and immunotherapeutic approaches.
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