ID- Soft tissue If you see...

Question 1

Honey-colored, crusted papules

Answer 1

Impetigo caused by B-hemolytic Strep or Staph

Question 2

Sepsis, cellulitis and hemorrhagic bullae after exposure to saltwater fish or shellfish in patients with cirrhosis or chronic illnesses (i.e. DM, RA, CKD)

Answer 2

Vibrio vulnificus infection

Question 3

Skin ulcer with necrotic center in a patient with neutropenia

Answer 3

Ecthyma gangrenosum from Pseudomonas or other bacterial infections

Question 4

Chronic nodular infection of distal extremities with exposure to fish tanks or marine environments

Answer 4

Mycobacterium marinum

Question 5

Chronic nodular infection of distal extremities with exposure to plants/spoil

Answer 5

Sporotrichosis and Nocardia

Question 6

Sepsis following a dog bite in a patient with asplenia

Answer 6

Capnocytophaga canimorsus

Question 7

Swelling and erythema with pain out of proportion to physical exam findings

Answer 7

Necrotizing (dep) soft tissue infection (surgical emergency)

Question 8

Acute, tender, well-delineated, purulent lesions

Answer 8

Abscess by S. aureus

Question 9

Follicle-centered pustules in the beard and pubic areas, axillae and thighs

Answer 9

S. aureus folliculitis

Question 10

Follicle-centered erythematous papules and pustules on the trunk, axillae, and buttocks 1-4 days after hot tub or whirlpool exposure

Answer 10

Psudomonas folliculitis

Question 11

Symmetric, pink-to-brown patches with thin scale in intertriginous areas (axillae, groin, inframammary)

Answer 11

Erythrasma caused by Corynebacterium minutissimum. Erythrasma will fluoresce to a coral red color with a Wood lamp.