Djerić D, Savić D
Department of Otorhinolaryngology, University Clinical Center, Belgrade, Yugoslavia.
Eur Arch Otorhinolaryngol. 1990;247(3):143-6. doi: 10.1007/BF00175963.
The histopathological changes of the facial canal and nerve in facial paralysis due to chronic suppurative otitis madia are described in six temporal bones. Bony destruction of the facial canal was found in its tympanic segment and in its upper mastoid part in all cases, but it was particularly notable in the labyrinthine segment as well. The pathological process, cholesteatoma or granulation tissue surrounding the exposed facial nerve was inflamed in all cases. The affected facial nerve showed degenerative and inflammatory changes throughout its tympanic segment in all cases, but its mastoid segment appeared to be relatively normal. Our findings suggest that facial paralysis occurs us chronic suppurative otitis when the inflammatory process specifically involves the facial nerve trunk.
对6例颞骨标本描述了慢性化脓性中耳炎所致面瘫患者面神经管及面神经的组织病理学变化。所有病例中均发现面神经管的鼓室段及其上乳突部有骨质破坏，而在迷路段尤为显著。所有病例中，围绕暴露面神经的病理过程，即胆脂瘤或肉芽组织均有炎症。所有病例中，受累面神经的鼓室段均呈现变性及炎症改变，但其乳突段似乎相对正常。我们的研究结果表明，当炎症过程特别累及面神经干时，慢性化脓性中耳炎可导致面瘫。
