Table 2.

Imaging and Surgery Details

Pt	Clinical Diagnosis	CT Findings	Note	MRI Findings	Note	Surgery Indications	Surgical Findings	Timing (Days)	Operation Outcome	30 Weeks Outcome
1	Otomastoiditis	Tegmen tympani dehiscence	CT brain Without contrast Day 1	Unremarkable	MRI brain With contrast Day 8	Tegmen tympani dehiscence	Tegmen tympani dehiscence Mastoid erosion	15	Survived	Survived
2	CSOM	Tegmen tympani dehiscence Mastoid erosion	CT ear Without contrast Day 8	Unremarkable	MRI brain With contrast Day 9	Tegmen tympani dehiscence	Tegmen tympani dehiscence Mastoid erosion	17	Survived	Survived
3	AOM	Tegmen tympani dehiscence Meningoencephalocele Cholesteatoma	CT brain Without contrast Day 1	Tegmen tympani dehiscence Mastoid erosion	MRI brain With contrast Day 11	Tegmen tympani dehiscence Meningoencephalocele Cholesteatoma	Tegmen tympani dehiscence Mastoid erosion Meningoencephalocele Cholesteatoma	30	Survived	Deceased (no relapse)
4	Otomastoiditis	Unremarkable	CT ear Without contrast Day 11	Not performed		Otomastoiditis	Tegmen tympani dehiscence Mastoid erosion	17	Survived	Survived
5	AOM	Unremarkable	CT brain Without contrast Day 1	Unremarkable	MRI brain With contrast Day 21	AOM	Tegmen tympani dehiscence Meningoencephalocele	45	Survived	Survived
6	Otomastoiditis	Unremarkable	CT right ear Without contrast Day 7	Unremarkable	MRI brain With contrast Day 21	Otomastoiditis	Cholesteatoma	28	Survived	Deceased (no relapse)
7	Otomastoiditis	Unremarkable	CT brain Without contrast Day 1	Not performed		Otomastoiditis	Tegmen tympani dehiscence	14	Survived	Survived
8	Otomastoiditis + right temporal abscess	Tegmen tympani dehiscence	CT brain Without contrast Day 1	Right temporal abscess	MRI brain With contrast Day 21	Tegmen tympani dehiscence + temporal abscess	Tegmen tympani dehiscence Mastoid erosion Meningoencephalocele	60	Survived	Survived
9	Otomastoiditis + right temporal abscess	Unremarkable	CT brain Without contrast Day 5	Right temporal abscess	MRI brain With contrast Day 19	Otomastoiditis + temporal abscess	Tegmen tympani dehiscence Cholesteatoma	28	Survived	Survived
10	Unremarkable	Otomastoiditis	CT brain Without contrast Day 1	Unremarkable	MRI brain With contrast Day 3	Otomastoiditis	Tegmen tympani dehiscence Meningoencephalocele	10	Survived	Survived
11	CSOM	Tegmen tympani dehiscence Cholesteatoma	CT ear Without contrast Day 7	Not performed		Tegmen tympani dehiscence Cholesteatoma	Cholesteatoma	60	Survived	Survived
12	AOM	Tegmen tympani dehiscence Cholesteatoma	CT ear Without contrast Day 4	Not performed		Tegmen tympani dehiscence Cholesteatoma	Tegmen tympani dehiscence Cholesteatoma		Survived	Unknown
13	Unremarkable	Tegmen tympani dehiscence	CT head and face Without contrast Day 9	Unremarkable	MRI brain With contrast Day 10	Tegmen tympani dehiscence	Unremarkable	10	Deceased	Deceased
14	Unremarkable	Otomastoiditis	CT head and face Without contrast Day 7	Not performed		Otomastoiditis	Unremarkable	21	Survived	Survived
15	AOM	Tegmen tympani dehiscence	CT ear Without contrast Day 7	Not performed		Tegmen tympani dehiscence	Tegmen tympani dehiscence Meningoencephalocele	6	Survived	Survived
16	Cholesteatoma	Cholesteatoma	CT brain Without contrast Day 1	Unremarkable	MRI brain With contrast Day 18	Cholesteatoma	Tegmen tympani dehiscence Cholesteatoma	21	Survived	Survived
17	Otomastoiditis	Cholesteatoma	CT brain With contrast Day 5	Not performed		Cholesteatoma	Cholesteatoma	55	Decead	Deceased (no relapse)
18	Otomastoiditis	Tegmen tympani dehiscence	CT brain Without contrast Day 1	Mastoid erosion	MRI brain With contrast Day 15	Tegmen tympani dehiscence	Tegmen tympani dehiscence Mastoid erosion Meningoencephalocele	21	Survived	Survived
19	AOM	Unremarkable	CT brain and ear With contrast Day 3	Unremarkable	MRI brain With contrast Day 21	AOM	Unremarkable.	27	Survived	Unknown
20	CSOM	Cholesteatoma	CT brain Without contrast Day 1	Unremarkable	MRI brain With contrast Day 11	CSOM	Cholesteatoma	16	Survived	Deceased (no relapse)
21	CSOM	Tegmen tympani dehiscence Mastoid erosion Cholesteatoma	CT ear Without contrast Day 8	Tegmen tympani dehiscence Cholesteatoma	MRI brain With contrast 13	Tegmen tympani dehiscence Mastoid erosion Cholesteatoma	Tegmen tympani dehiscence Mastoid erosion Cholesteatoma	27	Survived	Survived
22	Unremarkable	Tegmen tympani dehiscence Mastoid erosion Cholesteatoma	CT temporal bone Without contrast Day 1	Tegmentympani dehiscence Mastoid erosion Cholesteatoma	MRI brain and petrous bone With contrast Day 2	Tegmen tympani dehiscence Mastoid erosion Cholesteatoma	Tegmen tympani dehiscence Mastoid erosion Cholesteatoma	3	Survived	Survived
23	AOM	Tegmen tympani dehiscence Cholesteatoma	CT ear Without contrast Day 5	Not performed		Tegmen tympani dehiscence Cholesteatoma	Tegmen tympani dehiscence Meningoencephalocele Cholesteatoma	60	Survived	Survived
24	Cholesteatoma	Tegmen tympani dehiscence Cholesteatoma	CT brain Without contrast Day 1	Mastoid erosion Thrombophlebitis	MRI brain With contrast Day 2	Tegmen tympani dehiscence Cholesteatoma	Tegmen tympani dehiscence Mastoid erosion Cholesteatoma	3	Survived	Survived
25	Liquoral fistula	Cerebrospinal fluid fistula	CT head and face With contrast Day 3	Not performed		Liquoral fistula	Tegmen tympani dehiscence Liquoral fistula	5	Survived	Survived
26	Unremarkable	Tegmen tympani dehiscence	CT brain Without contrast Day 1	Not performed		Tegmen tympani dehiscence	Tegmen tympani dehiscence	21	Survived	Survived

Abbreviations: AOM, acute otitis media; CSOM, chronic suppurative otitis media; CT, computed tomography; MRI, magnetic resonance imaging; Pt, patient.