External Ear Disorders
Nader ALDajani
Pinna Presentation
Congenital:
- Anotia
- Microtia
- Macrotia
- Bat ear
- Preauricular pit or sinus
Traumatic:
- Haematoma of the auricle
- Lacerations
- Avulsion of pinna
- Frostbite
- Keloid of auricle
Inflammatory:
- Perichondritis
- Relapsing polychondritis
Tumor
External Auditory Canal Presentations
Congenital:
- Atresia
Physiological - Wax Deafness
Traumatic:
- Lacerations
Inflammatory:
- Localized otitis externa (Furuncle)
- Otitis externa
- Malignant otitis externa
- Otomycosis
- Herpes zoster oticus
- Eczematous Seborrhoeic otitis externa
Tumor
Introduction
The external ear is classified into:
- Pinna
- External auditory canal
- Tympanic membrane
Inner Ear
- Semicircular canals
- Cochlear canals
- Vestibular nerve
Outer Ear
- Ear canal
- Ear drum