Dermatology - Infestations and infections (adults)

Question 1

What is this? What is the PC and management of this condition?

Answer 1

Question 2

What is ringworm? Outline the places where it is found and the PC

Answer 2

Question 3

Name some of the organisms which cause ringworm

Answer 3

• Dermatophytes: mainly trichophyton rubrum
• Yeasts: candida
• Non-dermatophyte moulds

Question 4

Outline some management for ringworm

Answer 4

-Establish correct diagnosis by skin scarpings, hair or nail clippings (for dermatophytes) and skin swabs (yeast)
-General measures: treat known precipitants (eg underlying immunosuppressive condition, moist environment)
*Avoid sue of topical steroids: can lead to tinea incognito

Question 5

What is this condition? What is the PC and management?

Answer 5

Question 6

What is this and how do you manage it?

Answer 6

Question 7

What is this? Name some features of this condition

Answer 7

Question 8

How do you manage pityriasis versicolor?

Answer 8

Question 9

What is this? Name some features of this condition

Answer 9

Question 10

How do you manage seborrheic dermatitis?

Answer 10

Question 11

What is this? Outline the PC of this condition

Answer 11

Question 12

What is the management for impetigo?

Answer 12

Question 13

Name and explain these two conditions and give 2 organisms which frequently cuases these condition

Answer 13

• Left: cellulitis with elephantiasis of the penis. Cellulitis is infection of the deep subcutneous tissue
• Right: erysepelas - acute superficial form of cellulitis that invovles the dermis and upper subcutaneous tissue
• Causative organisms: streptococcus pyogenes and staphylococcus aureus

Question 14

Describe the presentation of erysepelas and cellulitis

Answer 14

-Most common in lower limbs
-Local signs of inflammation: tumour, dolor, calor, rubor and may be associated with lymphangitis
-Systemically unwell: fever, malaise/rigors
*Eryseplas is distinguished from cellultis by a well defined, red raised border

Question 15

How would you manage erysepelas and cellulitis? What are some complications?

Answer 15

• Admit, swabs, FBC, blood cultures
• Antibiotics: flucloxacillin or benzylpenicillin
• Supportive care: rest, elevation of limb, sterile dressings and analgesia

Complications

• Local necrosis
• Abscess
• Septicaemia

Question 16

What is this?

Answer 16

Question 17

Necrotising fasciitis: description, causes and presentation

Answer 17

Question 18

Necrotising fasciitis: managemetn and prognosis

Answer 18