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Endodermal cyst of the oculomotor nerve: case report
Tomohiro Okunaga1, Keisuke Tsutsumi, Tomayoshi Hayashi
1Department of Neurosurgery, Nagasaki University School of Medicine, Nagasaki, Japan. okunaga-nsu@umin.ac.jp
Neurosurgery
|April 28, 2006
Summary
This report details a rare intracranial endodermal cyst found on the oculomotor nerve in a young female experiencing vision problems. The case highlights the uncommon occurrence of these cysts affecting cranial nerves.
Area of Science:
- Neurology
- Neurosurgery
- Pathology
Background:
- Endodermal cysts are typically found in the spinal cord.
- Intracranial occurrences of endodermal cysts are rare.
- Cysts involving cranial nerves are exceptionally uncommon.
Observation:
- A 16-year-old female presented with diplopia and headache.
- Neurological examination indicated left oculomotor nerve palsy.
- MRI revealed a cystic mass near the left oculomotor nerve's exit from the midbrain.
Findings:
- Surgical biopsy and drainage were performed.
- The cyst was intrinsic to the oculomotor nerve and not fully resectable.
- Pathological examination confirmed an endodermal cyst.
Implications:
- This case represents a rare instance of an intracranial endodermal cyst affecting the oculomotor nerve.
- It contributes to the limited literature on cranial nerve endodermal cysts.
- Further investigation into the pathogenesis and management of such rare lesions is warranted.