Primary thoracic epidural melanoma : a case report.

Area of Science:

• Neurology
• Oncology
• Pathology

Background:

• Spinal epidural masses can present with neurological deficits.
• Metastatic tumors are common in older adults with spinal masses.
• Primary meningeal melanocytic tumors of the spine are exceptionally rare.

Purpose of the Study:

• To report a rare case of primary thoracic spinal epidural melanoma.
• To highlight diagnostic challenges in differentiating primary tumors from metastases.
• To discuss the clinical and pathological features of this rare entity.

Main Methods:

• Clinical presentation of progressive paraparesis and sensory alterations.
• Magnetic resonance imaging (MRI) for spinal mass evaluation.
• Histopathological examination for definitive diagnosis.

Main Results:

• MRI revealed an advanced T7-8 epidural mass, initially suspected as metastatic.
• Pathology confirmed the mass as a primary meningeal melanocytic tumor.
• The final diagnosis was primary thoracic spinal epidural melanoma.

Conclusions:

• Primary spinal epidural melanomas are exceedingly rare.
• Accurate diagnosis requires a combination of advanced imaging and histopathology.
• This case underscores the importance of considering rare diagnoses even with typical metastatic features.