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Rev Neurol. 2004 Nov 16-30;39(10):935-9.

[Mondini dysplasia: recurrent bacterial meningitis in adolescence].

[Article in Spanish]

Author information

1
Instituto de Neurología y Neurocirugía, Ciudad de La Habana, Cuba. jvargas@infomed.sld.cu

Abstract

INTRODUCTION:

Episodes of recurrent bacterial meningitis can occur in patients due to either congenital or acquired disorders. Congenital deformity of the bony labyrinth can be linked to a fistulous tract communicating it with the intracranial subarachnoid space. Mondini deformity is a frequent malformation in congenitally deaf patients.

CASE REPORT:

We report the case of an adolescent with a history of being unable to hear in one ear who, from the age of 10 years, began to suffer repeated bacterial meningoencephalitis with microbiological recovery of Streptococcus pneumoniae on three occasions. The type of germ recovered in the cerebrospinal fluid (CSF) and the history of congenital deafness that was detected when the patient was 3 years old were the diagnostic clues to the possible anomaly of the inner ear with a CSF fistula. The clinically proven CSF rhinorrhea contributed to the diagnosis of an ear anomaly with a fistula. Computerised axial tomography and magnetic resonance studies of the petrous portion of the temporal bone revealed the malformation that was later found and closed during the surgical intervention on the affected ear. The clinical absence of rhinorrhea, a year's progression without new infections after operating on the patient and post-surgery imaging studies were all proof that the fistula had closed.

CONCLUSIONS:

Mondini dysplasia with CSF fistula must be included as a possible diagnosis when faced with a patient with recurrent bacterial meningoencephalitis. Imaging studies, especially magnetic resonance, enable the clinician to check the diagnosis and the CSF fistula can be closed with ear surgery.

PMID:
15573310
[Indexed for MEDLINE]
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