DISEASES OF PINNA

Question 1

Anotia

Answer 1

complete absence of external ear pinna and lobule

part of first arch syndrome

Question 2

Microtia and macrotia

Answer 2

Peanut ear
unilateral or bilateral incompletely formed external ear developmental anomaly associated w others

macrotia is extremely large pinna

Question 3

bat ear

Answer 3

extremely protruding ear
large concha
poorly developed antihelix and scapha

Question 4

lop ear cup ear
greater form
cockle-shell or snail-shell

Answer 4

hypoplasia of upper 3rd of the auricle, upper portion of pinna is cupped,

Question 5

cryptotia

Answer 5

upper 3rd of the auricle is covered underneath the scalp skin

Question 6

coloboma

Answer 6

tranverse cleft in the pinna in the middle

Question 7

Minor deformities

Answer 7

Darwin’s tuberclee(upper part of helic is pointed)

Stahl’s ear(flat helix, duplicated antihelix)

Question 8

Deformities of ear lobules

Answer 8

absence of lobule,large lobule,bifid lobule, pixed(attached lobule)

Question 9

Preauricular tags or appendages

Answer 9

skin-covered tags that appear on a line drawn from the tragus to the roof angle of mouth, may have small pieces of cartilages

Question 10

Preauricular pit or sinus

Answer 10

depression in front of the crux of helix or above tragus.

Preauricular sinus is due to incomplete fusion of tubercles that may get infected causing purulent discharge

Question 11

cauliflower ear

Answer 11

extravasated blood may clot and then get infected…perichondritis
aspirate
perichondritis
prophylactic antibiotics

Question 12

lacerations

Answer 12

prevented asap, prevent stripping of perichondrium from cartilage takay avascular necrisis na ho

Question 13

Avulsion of pinna

Answer 13

When pinna is still attached to the head by a small pedicle of skin, primary reattachment should be considered and it is usually successful. Completely avulsed pinna can be reimplanted in selected cases by the microvas-cular techniques
cartilage implanted under the postauricular skin for later reconstruction

Question 14

Frostbite

Answer 14

4. Frostbite. Injury due to frostbite varies between ery-thema and oedema, bullae formation, necrosis of skin and subcutaneous tissue, and complete necrosis with loss of the affected part.

Question 15

Keloid of auricle

Answer 15

It may follow trauma or piercing of the ear for ornaments. Usual sites are the lobule or helix (Figure 8.7). Surgical excision of the keloid usually results in recurrence. Recurrence of keloid can be avoided by pre- and postoperative radiation with a total dose of 600–800 rad delivered in four divided doses. Some prefer local injection of steroid after excision.

Question 16

Perichondritis

Answer 16

). It results from infection sec-ondary to lacerations, haematoma or surgical incisions. It can also result from extension of infection from diffuse oti-tis externa or a furuncle of the meatus. Pseudomonas and mixed fl ora are the common pathogens.
Initial symptoms are red, hot and painful pinna which feels stiff. Later abscess may form between the cartilage and perichondrium with necrosis of cartilage as the cartilage survives only on the blood supply from its perichondrium.
Treatment in early stages consists of systemic antibiotics and local application of 4% aluminium acetate compresses.
When abscess has formed, it must be drained promptly and culture and sensitivity of the pus obtained. Incision is made in the natural fold and devitalized cartilage removed. Some prefer to place a catheter in the abscess and administer a continuous drip of antibiotics, selected by culture and sensi-tivity for 7–10 days.

Question 17

Chondrodermatitis nodularis chronica helicis. .

Answer 17

Small painful nodules appear near the free border of helix in men about the age of 50 years. Nodules are tender and the patient is unable to sleep on the affected side. Treatment is excision of the nodule with its skin and cartilage