Skin & Soft Tissue Infections

Question 1

Impetigo symptoms? occurs where?

Answer 1

multiple vesicular lesions on an erythematous base
golden crust highly suggestive

exposed parts of body

Question 2

Impetigo organism?

Answer 2

s.aureus

Question 3

impetigo treatment?

Answer 3

small areas with topical antibiotics but larger areas need oral

flucloxacillin

Question 4

what is erysipelas? where?

Answer 4

infection of the upper dermis

high percentage in lower limbs

Question 5

erysipelas symptoms?

Answer 5

painful, red area with fever
distinct elevated borders
regional lymphadenopathy

Question 6

erysipelas organism?

Answer 6

strep pyogenes

Question 7

what is cellulitis?

Answer 7

diffuse skin infection involving deep dermis and subcutaneous fat

Question 8

cellulitis presentation?

Answer 8

spreading erythematous area with no distinct border

fever common

Question 9

cellulitis organisms?

Answer 9

step pyogenes

staph aureus

Question 10

cellulitis main pre-disposing factor?

Answer 10

diabetes

Question 11

treatment for erysipelas and cellulitis?

Answer 11

a combination of anti-staphylococcal and anti-streptococcal antibiotics

Question 12

what is folliculitis?

Answer 12

circumscribed, pustular infection of hair follicles

Question 13

folliculitis presentation?

Answer 13

small red papules with central area of purulence which may rupture and drain

Question 14

what is furunculosis?

Answer 14

boils
single hair follicle-associated inflammatory module that extends into dermis

Question 15

Necrotising fasciitis RF?

Answer 15

DM
surgery
trauma
PVD

Question 16

Necrotising fasciitis type 1?

Answer 16

mixed aerobic and anaerobic infection including streptococci, staphylococci, enterococci and gram negative bacilli

Question 17

Necrotising fasciitis type 2?

Answer 17

monomicrobial due to step pyogenes

Question 18

Necrotising fasciitis symptoms?

Answer 18

rapid onset

sequential development of erythema, extensive oedema and severe pain

Question 19

Necrotising fasciitis big symptoms?

Answer 19

haemorrhagic bullae

skin necrosis

Question 20

Necrotising fasciitis systemic symptoms?

Answer 20

fever
hypotension
tachycardia
organ failure

Question 21

Necrotising fasciitis treatment?

Answer 21

surgical review with broad spectrum antibiotics

Question 22

what is pyomyositis?

Answer 22

purulent infection deep within striated muscle often manifesting as an abscess

Question 23

pyomyositis common sites?

Answer 23

thigh, calf, arms, gluteals, chest wall

Question 24

pyomyositis presentation?

Answer 24

fever, pain and woody induration

Question 25

pyomyositis investigates?

Answer 25

CT/MRI

Question 26

pyomyositis treatment?

Answer 26

drainage with antibiotic cover

Question 27

septic bursitis most common?

Answer 27

patellar and olecranon

infection is often from adjacent skin infection

Question 28

septic bursitis symptoms?

Answer 28

swelling and warmth

fever and pain on movement

Question 29

septic bursitis diagnosis?

Answer 29

aspiration of fluid

s.aureus