It mostly involves otic ganglion and stapes in which normal bone is replaced by spongy bones.
它主要累及耳神经节和镫骨,其中正常的骨被海绵骨取代。
英语百科
Otic ganglion
The otic ganglion is a small parasympathetic ganglion located immediately below the foramen ovale in the infratemporal fossa and on the medial surface of the mandibular nerve. It is functionally associated with the glossopharyngeal nerve and innervates the parotid gland for salivation.