《耳鼻喉科学 Otolaryngology》课程教学课件（PPT讲稿）Ear_4、Secretory otitis media（SOM）

Secretory otitis media (SOM)

1 Secretory otitis media (SOM)

1、DefinitionSOMisa conditioncharacterised bypresence of non-purulent fluid in the middle ear.synonyms: otitis media with effusionserous otitis media、mucoidotitis media、catarrhal otitis media、glueear.*classification:acuteandchronic.*commonlyseeninchildren

2 1、Definition * SOM is a condition characterised by presence of non-purulent fluid in the middle ear. * synonyms：otitis media with effusion、 serous otitis media、mucoid otitis media、 catarrhal otitis media 、glue ear. *classification: acute and chronic. * commonly seen in children

2、Causes:severalfactors may beattributed tothis:1.insuffciencyofeustachiantube:.mechanical obstruction:adenoid hyperplasianon-mechanicalobstruction:2.viralinfection:3.allergy:4.unresolvedacuteotitismedia

3 2、Causes: several factors may be attributed to this： 1.insuffciency of eustachian tube： •mechanical obstruction：adenoid hyperplasia •non-mechanical obstruction： 2.viral infection： 3.allergy： 4.unresolved acute otitis media

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4 中耳炎的病因、机理、分类与转归

adenoidhyperplasia0中auX-rayEndoscopy5

5 adenoid hyperplasia Endoscopy X-ray

Carcinoma of the nasopharynx6

6 Carcinoma of the nasopharynx

Comparation ofeustachiantubeshorter,wider,morehorizontalstraightchildrenadult

7 Comparation of eustachian tube shorter, wider, more horizontal, straight children adult

3、clinicalmanifestation:symptoms:1、hearingloss2、earaches3、tinnitus8

8 3、clinical manifestation: symptoms: 1、hearing loss 2、earaches 3、tinnitus

Earexamination:1、otoscopicfindings:*the tympanic membrane is usually dull andretracted withloss oflight reflex.*fluidfilled inthe middle ear:horizontal orcresentic line,bubbles,colourchangedO

9 Ear examination: 1、otoscopic findings: *the tympanic membrane is usually dull and retracted with loss of light reflex. *fluid filled in the middle ear：horizontal or cresentic line, bubbles, colour changed

The image oftympanic membraneDull oftympanic membranefluid filled in the middleear10

10 The image of tympanic membrane Dull of tympanic membrane fluid filled in the middle ear