Mechanical injuries

Question 1

Histology of chondrodermatitis nodularis helicis chronica:

Answer 1

• epidermal disruption/ulceration, underlying dermis with reparative change
• necrotic cartilage- appears more pale pink instead of normal blue-purple color

Question 2

Treatment of Chondrodermatitis nodularis helicis chronica:

Answer 2

• special pillows, surgery, ILK

Question 3

Herniation of fat through fascia of lateral heels is called:

Answer 3

piezogenic papules

Question 4

What is medical term for cauliflower ear and what is pathogen?

Answer 4

• traumatic auricular hematoma
• trauma to external ear → subperichondrial hematoma
• if this is untreated can develop fibroneurocartilage +/- calcifications

Question 5

firm skin colored-red plaque on the upper postauricular sulcus/upper lateral nose with groove running vertically is called ______, due to ____

Answer 5

• acanthoma fissuratum
• poorly fitting eye glasses

Question 6

Poorly fitting eyeglasses leading to firm skin-colored/red plaque =

Answer 6

Acanthoma fissuratum