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Dorsal intramedullary dermoids.
Marwan W Najjar1, John A Kusske, Anton N Hasso
1Dr. Erfan and Bagedo Hospitals, King Fahad St. (Al Sitteen), P.O. Box 6519, Jeddah, 21452, Saudi Arabia. mwnajjar@yahoo.com
Neurosurgical Review
|March 2, 2005
Summary
This study presents a rare case of a thoracic spinal dermoid cyst causing progressive neurological deficits. Early diagnosis and surgical intervention are crucial for managing these uncommon intramedullary tumors.
Area of Science:
- Neurology
- Neurosurgery
- Developmental Biology
Background:
- Intramedullary dermoid cysts are rare congenital tumors.
- Spinal dermoid cysts can lead to significant neurological impairment over time.
- Differentiating thoracic intramedullary dermoids from lumbosacral juxtamedullary types is important for treatment.
Observation:
- A 31-year-old woman presented with progressive spastic paraparesis and loss of bowel/bladder control.
- MRI revealed a thoracic intramedullary lesion at T7-T8 with an associated lipoma.
- The patient had a history of spina bifida repair in infancy.
Findings:
- Intracapsular resection of the intramedullary dermoid cyst was successfully performed.
- Literature review highlights differences between intramedullary and subdural dermoid cysts.
- Associated congenital malformations and pathophysiology were discussed.
Implications:
- Dorsal intramedullary dermoids, though uncommon, require timely diagnosis and treatment.
- Suspicion should be high in patients with other congenital anomalies.
- Prompt management can prevent irreversible neurological damage.