Some Diseases of External Ear

Some Diseases of External Ear 


Malignant Otitis Externa : It is infection of underlying bone . It is skull base osteomyelitis . 

         Seen in elderly diabetics .       Caused by Pseudomonas aeruginosa        C/F severe pain in the ear  . On examination of EAC blood stained ear discharge seen .

# Facial nerve most commonly involved nerve . 9th, 10th , 11rth and 12th nerve can also be involved . 

# Diagnosis :: Tc bone scan 

# Monitoring of prognosis : Gallium bone scan  , ESR 

# DOC : 3rd generation cephalosporin ( Ceftazidime, Cefoperazone ) OR Ciprofloxacin 

# If not relieved by drugs then do surgical debridement 

OTOMYCOSIS :  Fungal infection of EAC .  

# MC fungus: Aspergilus Niger , Candida Albicans 

# It forms a mass in EAC which is moist whitish and with black pores (=Wet news paper appearance ) 

# Treatment : Suction and antifungal ear drops ( Ex. Nystatin ) 

EXOSTEOSIS :  Hyperplasia of bony EAC d/t stimulation by water 

# Most commonly seen in water sport players . Also known as "Surfer's Ear".

# Treatment : Drilling and removing the extra bone .

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