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RHINOGENIC AND OTOTIC INTRACRANIAL SUPPURATION

RHINOGENIC AND OTOTIC INTRACRANIAL SUPPURATION

RHINOGENIC AND OTOTIC INTRACRANIAL SUPPURATION

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Etiology<br />

Spread<br />

Direct- Erosion of Tegmen tympani<br />

Erosion of posterior wall of frontal sinus<br />

Retrograde septic thrombophlebitis<br />

Facial or scalp infection<br />

Dental sepsis<br />

Meningitis<br />

Cranial surgery e.g. depressed fracture<br />

Infection at distant sites

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