[An intranasal meningoencephalocele in a 64-year-old woman]

The paper reports a rare case of intranasal meningoencephalocele in a 64-year-old female, simulating clinically a nasal polyp. A histological investigation of the removed polyp showed that it was composed mainly of malformed brain tissue with meninx vasculosa. The authors suggest a congenital nature of this formation.