[Labyrinthitis ossificans after pneumococcal meningitis].

In labyrinthitis ossificans the membranous labyrinth and the endosteum are obliterated by pathological ossification. The pathogenesis, differential diagnosis and radiological findings of a case of labyrinthitis ossificans caused by pneumococcal meningitis are described. The destructive process in the membranous labyrinth can be shown by radiology. The importance of early diagnosis for rehabilitation of hearing loss after treatment is demonstrated.