1993 Volume 86 Issue 7 Pages 963-970
A 48-year-old male with pachydermoperiostosis complained of right nasal obstruction. Rhinoscopy revealed a light grey polypoid mass in his right nasal cavity. This was biopsied. Cerebrospinal fluid (CSF) suddenly dripped from the remnant stump after the operation. The histological diagnosis was meningoencephalocele with no neoplasm. MRI showed fluid collection in his right nasofrontal duct from his right frontal sinus.
We therefore diagnosed transfrontal meningoencephalocele of the right nasal cavity with CSF rhinorrhea. Continuous spinal drainage was done for six weeks, but the leakage continued. An extranasal approach was selected for repairing the CSF leakage. A bone defect was found in the posterior wall of the right frontal sinus. This defect was successfully covered with femoral fascia and muscle with the use of a fibrin sealant. His post operative condition was good.