Epidermoid cyst of the anterior clinoid process: report of a unique finding and literature review of the middle cranial fossa locations.
Clin Neurol Neurosurg
; 200: 106381, 2021 01.
Article
in En
| MEDLINE
| ID: mdl-33302123
ABSTRACT
BACKGROUND:
Epidermoids cysts are relatively rare, benign, congenital tumours, representing from 0.3% to 1.8% of all intracranial lesions. When extradural, they are most commonly reported in the temporal or parietal bones as intradiploic lesions; when intradural their most common location is the cerebellopontine angle and less frequently the middle cranial fossa. Herein we present a unique case of an extradural-intraosseous epidermoid cyst of the anterior clinoid process, integrating our single-case experience into a focused literature review of these lesions, when located in the middle cranial fossa. CASE DESCRIPTION A 49 years old man came to our attention with history of head trauma. Urgent brain CT and elective brain MRI showed imaging suggestive for an anterior clinoid process epidermoid cyst. Through a pterional approach, the lesion was completely removed with microsurgical endoscope assisted technique. MRI at one year follow up showed no recurrence.METHODS:
Current literature on epidermoid cysts located in middle cranial fossa was reviewed. A total of 22 papers, containing 70 epidermoid cyst were selected for the review. Symptoms at presentation; anatomic location; surgical approach; extent of resection and recurrence; outcome after surgery and at follow up were analysed for each case.CONCLUSIONS:
In the 70 published cases of middle fossa epidermoid cysts, the majority presented with trigeminal neuralgia. Most of the cases were operated through a pterional approach, while recent literature showed an increasing interest in endonasal endoscopic techniques. Subtotal resection is not a straight predictive value for recurrence; post-operative neurological deficits incidence is low and generally resolve at follow-up.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Cranial Fossa, Middle
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Epidermal Cyst
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Craniocerebral Trauma
Type of study:
Diagnostic_studies
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Etiology_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
/
Systematic_reviews
Limits:
Humans
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Male
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Middle aged
Language:
En
Journal:
Clin Neurol Neurosurg
Year:
2021
Document type:
Article
Affiliation country: