Related Experiment Video
Updated: May 13, 2026

05:39
Surgical Transplantation of Tumor Cells into the Spinal Cord of Mice
Published on: December 27, 2024
Primary intramedullary spinal cord germinoma
Megha Madhukar1, Vinod G Maller, Arabinda K Choudhary
1Departments of Radiology, Penn State Milton S. Hershey Medical Center, H066, 500 University Drive, P.O. Box 850, Hershey, Pennsylvania 17033, USA. mmadhukar@hmc.psu.edu
Journal of Neurosurgery. Pediatrics
|February 26, 2013
Summary
Primary intramedullary spinal cord germinoma (PISCG) is rare in children. This case highlights focal spinal cord atrophy as an early PISCG sign, even without a visible mass on initial imaging.
Area of Science:
- Pediatric Oncology
- Neuro-oncology
- Spinal Cord Imaging
Background:
- Primary intramedullary spinal cord germinoma (PISCG) is an exceptionally rare tumor, particularly in pediatric patients.
- Typically, initial imaging reveals an intrinsic spinal cord mass.
Observation:
- A unique pediatric case presented with focal spinal cord atrophy on initial imaging, not a distinct mass.
- This atrophy represented the earliest indicator of a slowly progressing intramedullary lesion.
Findings:
- The lesion was ultimately diagnosed as PISCG via biopsy.
- This case underscores the diagnostic challenge posed by PISCG in children.
Implications:
- PISCG should be considered in the differential diagnosis of pediatric spinal cord dysfunction, even with normal MRI findings for intrinsic masses.
- Unexplained focal spinal cord atrophy warrants further investigation for rare intramedullary lesions like PISCG.
Related Concept Videos
Spinal Cord: Gross Anatomy
The spinal cord resides within the protective confines of the vertebral column. It is the main pathway for information traveling between the brain and the body. It plays a fundamental role in nearly all bodily functions, from simple reflexes to complex motor movements. The spinal cord begins at the medulla oblongata at the base of the brainstem and extends downward, terminating at the conus medullaris near the first and second lumbar vertebrae. The spinal cord's length in adults is...
Spinal Cord
The spinal cord, a critical component of the central nervous system, extends from the base of the brainstem to the lumbar region of the vertebral column. It is essential for maintaining physical stability and facilitating communication between the brain and peripheral parts of the body.
Secondary Spinal Cord Injury llI: Pathophysiology
Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...

