Presentation
CSF rhinorrhea of several months. No history of trauma.
Patient Data
Age: 40 years old
Gender: Male
From the case:
Frontoethmoidal encephalocele
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A cystic lesion is seen filling the left nasal cavity.
A bone defect is noted at the left aspect of cribriform plate through which this cystic lesion is arising.
From the case:
Frontoethmoidal encephalocele
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A CSF containing cyst is seen herniating through the cribriform plate into the nasal cavity containing part of the frontal lobe.
Case Discussion
Frontoethmoidal encephalocele is a sac containing CSF, meninges and brain tissue herniating through a bone defect at the nasal or frontal bones. It can occur spontaneously, be post traumatic or secondary to raised intracranial pressure e.g. tumor.
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