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CSOM: The Role of Angled Otoendoscopy

 

 30/45 degree otoendoscopy are useful in the assessment of CSOM.  Its indications include to ascertain ossicular continuity, presence of adhesions, tympanosclerosis, and to look for potential residual focus of infection

prior to myringoplasty.

This image shows the the presence of mucopus from posterosuperior compartment of the middle ear and filling the round window niche.  The discharge is very likely arising from the aditus after it exits mastoid reservoir.

 

Blob of mucopus occluding eustachan tube opening (circle).

1- handle or malleus tip, 2- round window niche.

30 degree otoendoscopy showing anterior hypotympanum of the right middle

ear cavity focusing at eustachian tube opening (star).  White dots indicates

remnant of tympanic annulus of the eardrum in near-total perforation.

 

Dehiscence facial nerve involving its horizontal segment in the middle ear (arrow) as seen by using 70 degree endoscope.

Dehiscence facial nerve involving its horizontal segment in the middle ear (arrow).
Dehiscence facial nerve involving its horizontal segment in the middle ear (arrow).

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