Table 3:

Patterns of lesion growth (n = 16)

No.	Initial MR imaging					Follow-Up Exam(s)
	Cochlear Labyrinth			Vestibular Labyrinth		Cochlear Labyrinth			Vestibular Labyrinth		IAC
	Apical Turn	Second Turn	Basal Turn	Vestibule	SCC	Apical Turn	Second Turn	Basal Turn	Vestibule	SCC	IAC
1		ST					ST + SV
2		ST					ST + SV
3		ST + SV				ST	ST + SV	ST + SV
4	ST	ST + SV				ST + SV	ST + SV	ST + SV			Y
5			ST				ST	ST + SV
6			ST				ST	ST
7		ST	ST				ST + SV	ST
8		ST	ST				ST + SV	ST + SV			Y
9		ST + SV	ST + SV				ST + SV	ST + SV	Ant + pos		Y
10		ST + SV	ST + SV				ST + SV	ST + SV	Ant
11	ST + SV	ST + SV	ST + SV	Ant		ST + SV	ST + SV	ST + SV	Ant + pos	Lsc
12	ST + SV	ST + SV	ST + SV	Ant		ST + SV	ST + SV	ST + SV	Ant
13				Ant	Lsc			SV	Ant + pos	Lsc + ssc + psc
14				Ant + pos	Lsc + ssc				Ant + pos	Lsc + ssc + psc
15		ST + SV	ST + SV				ST + SV	ST + SV
16				Ant				SV	Ant + pos	Lsc

Note:—ST indicates scala tympani; SV, scala vestibuli; Ant, anterior; pos, posterior; Lsc, lateral semicircular canal; ssc, superior semicircular canal; psc, posterior semicircular canal; IAC, internal auditory canal; Y, yes; SCC, semicircular canal.