Term
| light brown crust vs thick golden crust |
|
Definition
light brown crust: bullous impetigo
thick golden crust: impetigo |
|
|
Term
| What is the organism that causes bullous impetigo? |
|
Definition
|
|
Term
| What organism causes folliculitis? |
|
Definition
|
|
Term
| What is the difference between furuncle and carbuncle? |
|
Definition
furuncle: abscess deep within hair follicle
carbuncle: more extensive involvement w/multiple abscesses |
|
|
Term
| What are the complications of furuncles/carbuncles? |
|
Definition
cellulitis
bacteremia
sepsis |
|
|
Term
|
Definition
infection of the dermis: painful erythema, warmth, well demarcated borders
systemic: fever, leukocytosis
predisposing factors: poor venous drainage, chronic edema, obstruction
most common in young and old
caused by Group A Strep |
|
|
Term
| painful erythema with well demarcated borders |
|
Definition
|
|
Term
|
Definition
deeper infection beginning in the dermis and extending into subcutaneous fat
erythema and warmth
systemic signs & sxs
caused by Group A Strep, S aureus, clostridium, others |
|
|
Term
diffuse erythematous rash on neonates and small children
fever
bullae>exfoliation |
|
Definition
| scalded skin syndrome caused by S Aureus |
|
|
Term
| What SSTIs are caused ONLY by group A strep? |
|
Definition
|
|
Term
|
Definition
|
|
Term
| sand-paper like rash that spares palms and soles |
|
Definition
|
|
Term
|
Definition
|
|
Term
| pathogenesis of scarlet fever |
|
Definition
Group A Strep: erythrogenic toxin and capillary fragility
Tx: pencillin or amoxocillin |
|
|
Term
| What conditions can cause crepitance? |
|
Definition
necrotizing fasciitis
myonecrosis |
|
|
Term
| perianal gangrene in diabetic men |
|
Definition
|
|
Term
| What organisms cause myonecrosis |
|
Definition
s pyogenes
mixed infection
clostridium: draining wound w/bronze skin discoloration |
|
|
Term
| What SSTI does S. pyogenes cause? |
|
Definition
|
|
Term
| What is the pathogenesis of osteomyelitis? |
|
Definition
hematogenous
contiguous infection
direct inoculation
organsims: s aureus, s epidermidis, strep, GNR, salmonella, MTb |
|
|
Term
| How is osteomyelitis diagnosed? |
|
Definition
labs: ^ WBCs, ^ESR
xray: osteopenia or lytic lesions early on, then sclerotic changes later
nuclear: increased uptake in infected bone
CT/MRI: enhancement & edema |
|
|
