AMBOSS Skin/Burns

Question 1

Skin lesions associated with Crohn’s

Answer 1

Pyoderma gangrenosum

Question 2

Pyoderma gangrenosum

Answer 2

Painful
Rapidly progressive red spots
Pustule with necrosis

Question 3

Difference between lipoma and epidermoid cyst

Answer 3

Lipoma: rubbery, overlying skin can be pinched

Epidermoid cyst: firm, cannot be pinched

Question 4

Pilonadal cyst

Answer 4

Skin/subq infection near gluteal cleft

Tx = I&D with 2˚ wound closure

Question 5

Most common congenital neck masses

Answer 5

Most common: lymphadenopathy

1. Thyroglossal duct cyst: firm, midline, moves with swallow
2. Branchial cleft cyst: painless, lateral to midline but anterior to SCM
3. Cystic hygroma: posterior to SCM, associated with aneuploidy and congenital heart defects

Question 6

Marjolin’s ulcer

Answer 6

an aggressive form of cSCC that typically develops from areas of chronically damaged skin such as ulcers (e.g., pressure ulcers, osteomyelitis) and scars (e.g., burn scars)

Question 7

Pearly induration with rolled border

Answer 7

BCC

Question 8

Melanotic, bleeds easy, lesion on lower lip

Answer 8

SCC

Question 9

What is Parkland’s formula?

Answer 9

.4L x % burn x kg

= 24hr fluid requirements, 1/2 of which given in first 8hrs

Question 10

How does fluid calculation differ between adults and kids in the first 24 hours after a burn

Answer 10

Adult = Parkland only
Kiddo = Parkland plus normal 24 hour requirement (4,2,1 rule)

Question 11

Fluid requirements titrated by urine output?

Answer 11

> .5ml/kg/hr for adults

>1 ml/kg/hr for kiddos