Otosclerosis

Otosclerosis

  • otospongiosis, is a primary disease of the bony labyrinth
  • one or more foci of irregularly laid spongy bone replace part of normally dense enchondral layer of bony otic capsule.
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Acoustic Nueroma

  • Acoustic neuroma constitutes 80% of all cerebellopontine angle tumours
  • It is a benign, encapsulated, extremely slow-growing tumour of the 8th nerve.
  • Microscopically, it consists of elongated spindle cells with rod-shaped nuclei lying in rows or palisades. Continue reading

Otosclerosis

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  • otospongiosis, is a primary disease of the bony labyrinth
  • one or more foci of irregularly laid spongy bone replace part of normally dense enchondral layer of bony otic capsule.
  • Most often, otosclerotic focus involves the stapes region leading to stapes fixation and conductive deafness. (MCQ)
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