4. Pathologies Of Pinna Flashcards
(10 cards)
What is perichondritis?
Infection of the perichondrium of the pinna
What is the most common organism causing perichondritis?
Pseudomonas aeruginosa
What is cauliflower ear?
Deformity of the ear due to untreated auricular hematoma
What is chondrodermatitis nodularis helicis?
Painful nodule on the helix due to chronic pressure
What is the treatment for auricular hematoma?
Aspiration and compression dressing
What is the safest part of the pinna to pierce?
Lobule
What is the common site for a preauricular sinus?
At the root of the helix
What is the embryological basis of preauricular sinus?
Incomplete fusion of the hillocks of His
What is the nerve supply to the pinna?
Great auricular nerve, auriculotemporal nerve, lesser occipital nerve
What type of cartilage is found in the pinna?
Elastic cartilage