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Diseases of The Ear

Question
4 out of 24
 

Fungus causing otomycosis most commonly is:[LQ]



A Aspergillus fumigatus
B Candida

C Mucor
D Penicillin

Ans. A aspergillus niger

Ref. Dhingra 5thled pg 58, 6thled p 52; Current otolaryngoly 2ndled pg 630; Scotts Brown 7thled vol3pg 3355

Otomycosis

It is fungal otitis externa

Accounts for » 9- 10% cases of otitis extern a

In 80% of these cases,the etiologic agent is aspergillus (A. niger> A. fungatus) whereas candida is the next most frequently isolated fungus.

Other more rare fungal pathogens include

o Phycomycetes

o Rhizopus

o Actinomyces

o Penicillium

Also.Know

Otomycosis is common in hot and humid dimate.

It also occurs in patients using topical antibiotics for treatment of otitis externa or middle ear suppuration.

Clinical feature:

- Intense itching

- discomfort

- -discharge with musty odor.

On examination:

- A niger appears as black-headed filamentou~ growth.

- A fumigatus: as pale blue or green growth

- Candida: as white / creamy deposit.

Diseases of The Ear Flashcard List

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