Car

1. OTOGENIC BRAIN
ABSCESS
Benisha Julian

3. Route of Spread

4. Tegmen plate
Temporal
bone

5. Cerebellum

6. Superior Petrosal Sinus
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Posterior Semicircular Canal
Trautmann’s
Triangle

7. Retrograde Thrombophlebitis

8. Bacteriology
• Staph. aureus & albus
• Strep. pyogenes
• Pneumoccus
• E. coli
• B. proteus

9. 1 2
3 4
Stages

10. Initial Encephalitis
Stage
1
Headache
Chills
Nausea and vomitting
Clinical features of

11. Latent Stage
2
Localization of abscess
1- 2
weeks
Headache
Raised temperature
Clinical features of

12. Expanding Abscess Stage
3
Expansion of
abscess
Raised
Intracranial
tension

13. Clinical features of
Intracranial Tension

14. Headache
Pulse rate & Irregular breathing
Projectile Vomiting
Raised temperature
Papilledema

15. Terminal Stage
4
Rupture of Abscess
Into ventricle

17. Temporal Lobe Abscess
Clinical features of
Aphasia
Oculomotor palsy
Hemiplegia
Homonymous Hemianopia

18. Clinical features of
Cerebellar Abscess

19. Ataxia

20. Nystagmus

21. Dysdiadochokinesia

22. Past pointing

23. Investigations
• CT - diagnostic
• Lumbar Puncture
• Electroencephalography
• Intra-cranial angiography

24. Temporal
lobe
Abscess

25. Cerebellar
Abscess

26. Treatment
•Antibiotics
• Abscess Drainage
•Mastoidectomy –
removal of primary focus
of infection