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DISEASES OF EXTERNAL EAR

DISEASES OF EXTERNAL EAR. Dr.Sudeep K.C. DISEASES OF THE PINNA. A)Congenital disorders B)Trauma to the auricle C)Inflammatory disorders. A)Congenital Disorders. 1) Bat Ear(lop ear): Abnormally protuding ear with poorly developed antihelix.

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DISEASES OF EXTERNAL EAR

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  1. DISEASES OF EXTERNAL EAR Dr.Sudeep K.C.

  2. DISEASES OF THE PINNA A)Congenital disorders B)Trauma to the auricle C)Inflammatory disorders

  3. A)Congenital Disorders • 1) Bat Ear(lop ear):Abnormally protuding ear with poorly developed antihelix. • 2)Preauricular Appendages: skin covered tag may contain small pieces of cartilage.

  4. 3)Preauricular pit or sinus : commonly seen at the root of helix and due to incomplete fusion of tubercles.

  5. 4)Anotia : complete absence of pinna

  6. 5)Macrotia: excessively large pinna6)Microtia : It is a major developmental anomaly and is frequently associated with anomalies of external auditory canal . Hearing loss is frequent

  7. B)Trauma to the Auricle • 1)Haematoma of the Auricle : It is the collection of blood between auricular cartilage and its perichondrium due to blunt trauma. • Extravasted blood may clot and organize , resulting in a typical deformity called cauliflower ear. • Treatment : Aspiration of haematoma and a pressure dressing.

  8. 2)Lacerations: They are repaired as early as possible . The perichondrium is stitched with absorbable sutures with broad spectrum antibiotics. special care is taken to prevent stripping of perichondrium

  9. 3)Avulsion of pinna: If there is partial avulsion primary reattachement is considered. For complete avulsion pinna can be reimplanted by microvascular technique.

  10. 4)FrostBite: Injury varies between erythema , oedema , bullae formation ,necrosis of skin and complete necrosis with loss of affected part. • Treatment: • Rewarming with cotton piece • Analgesics for pain • Systemic antibiotics • Surgical debridement

  11. 5)Keloid of Auricle: It may follow trauma or piercing of ear .Usual sites are lobule or helix. • Treatment: • Surgical excision • Recurrence can be avoided by pre and post operative radiation.

  12. C)Inflammatory Disorders • 1)Perichondritis : It results from infection secondary to lacerations , haematoma , or surgical incision . • Symptoms: Red, hot and painful pinna which feels stiff . later abscess may form in between cartilage and perichondrium with necrosis of cartilage. Treatment: • Antibiotics and local application of 4%almunium acetate compresses. • Abscess should be drained.

  13. 2)Relapsing polychondritis: It is a rare autoimmune disorder involving cartilage .The entire auricle except its lobule is inflammed and tender.External ear canal becomes stenotic. • Treatment: high doses of systemic steroids. • 3)Chondro dermatitis nodularis chronica helicis: Small painful nodules appear in the free border of helix in men about 50 yrs of age.Nodules are tender and patient unable to sleep on affected side. Treatment: Excision of nodule with its skin and cartilage.

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