[Metastatic carcinoma involving the cauda equina]

Area of Science:

• Oncology
• Neurology
• Pathology

Background:

• A 60-year-old male patient diagnosed with undifferentiated lung carcinoma received cobalt therapy with initial improvement.
• The patient later presented with lumbar pain, necessitating hospitalization and further investigation.

Observation:

• Myelography using lipiodol identified an intra-dural mass.
• Surgical exploration revealed a large intra-dural tumor encasing the cauda equina.

Findings:

• Microscopic examination confirmed the tumor as undifferentiated carcinoma.
• The carcinoma demonstrated infiltration of the epi- and peri-neural spaces.

Implications:

• This case highlights a rare presentation of lung carcinoma with intra-dural metastasis.
• It underscores the importance of considering metastatic disease in patients with unexplained neurological symptoms.
• The findings emphasize the aggressive nature of undifferentiated carcinoma and its potential to infiltrate neural structures.