ID Sex Age (years) Duration of disease (years) History of surgery Surgical procedure Site of ossification Ossicle morphology Semicircular canal fistula Preoperative vertigo Postoperative vertigo
1 Female 54 9 No CWDM+TORP Tympanic antrum Malleus fixed; incus morphology not discernible Intact “blue lines” in membranous labyrinth No Yes
2 Female 60 10 No CWDM Tympanic antrum Incus fused with osseous tissue Lateral semicircular canal fistula No Yes
3 Female 22 4 No CWDM Anterior attic Fused malleus-incus complex No No No
4 Female 35 10 No CWDM+TORP Tympanic antrum, attic, facial nerve canal, round window Incus fused with osseous tissue No Yes No
5 Female 25 5 Yes CWDM+PORP Attic Malleus and incus were fixed to the ossified medial wall of the tympanic cavity No No No
6 Female 68 10 Yes CWDM+TORP Tympanic antrum, attic Malleus and incus not discernible No No No
7 Female 57 25 Yes CWDM Periphery of labyrinth and oval window Ossicles not discernible No No No