Heterotopic brain tissue: a rare cause of adult recurrent meningitis.
Heterotopic brain tissue is a rare cause of symptoms in neonates in whom it may present with respiratory obstruction. In infants it may produce unilateral nasal obstruction due to a nasal 'polyp' or cerebrospinal fluid rhinorrhoea with an associated risk of meningitis. It is exceedingly rare in adults but may nevertheless be a cause of significant morbidity as this case demonstrates.
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