Derm

Question 1

Atopic eruption of pregnancy 3 types

Answer 1

Eczema
Prurigo of pregnancy
Pruritic folliculitis of pregnancy

Question 2

Pathophysiology of increased eczema in pregnancy

Answer 2

Dominant humoral immune response and T-helper 2 cytokines production

Question 3

Incidence of prurigo of pregnancy

Answer 3

1:300

Question 4

Appearance of prurigo

Answer 4

Pruritic, often excoriated papules and nodules on the extensor surfaces of the legs and upper arms; abdo can be involved

Any trimester
Pathogenesis unknown
No adverse effects to mother or fetus

Question 5

Pruritic folliculitis

Answer 5

1::3000
2nd. And 3rd trimester
Mildly. Itchy
Looks like. Acne (2-4mm follicular papules or pustules. Typically on shoulders, upper back, arms I,, chest, and abdomen

No risk to mum or babe

Question 6

Polymorphic eruption of. Pregnancy

Answer 6

1:160

Associated with multiple gestation and maternal weight. Gain.
Etiology unknown
Usually nullip third trimester
Doesn’t usually recur
Polymorphous, erythematous, nonfollicular papules, plaques, and sometimes vesicles
Abdomen, can. Spread to upper thighs, breasts, and arms; (Umby sparing)

Question 7

Pemphigoid gestationis

Answer 7

Rare autoimmune disorder
1:50000
Second or third trimester
Rash in peri-umbilical region
Lesions are pruritic, urticaria last and vesiculobullous
Immunopathological-complement 3
5-10% fetuses have urticarial, vesicular or bullies lesions
Some association with prem deliveries and SGA

Treat with antihistamines and/or steroids
Sometimes need igG immunoglobulins