8.19 Pregnancy-related Rashes Flashcards Preview

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Flashcards in 8.19 Pregnancy-related Rashes Deck (25)
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1
Q

Name 5 rashes that can appear in pregnancy

A

Polymorphic eruption of pregnancy

Atopic eruption of pregnancy

Melasma

Pyogenic granuloma

Pemphigoid gestations

2
Q

What is another name for polymorphic eruption of pregnancy?

A

pruritic and urticarial papules and plaques of pregnancy

3
Q

What is this?

A

Polymorphic eruption of pregnancy

4
Q

What is this?

A

Atopic eruption of pregnancy

5
Q

What is this?

A

Melasma

6
Q

What is this?

A

Pyogenic granuloma

7
Q

What is this?

A

Pemphigoid gestations

8
Q

Where and when does polymorphic eruption of pregnancy start?

A

starts in the 3rd trimester begins on abdomen and is associated with stretch marks

9
Q

What appearance characterises polymorphic eruption of pregnancy?

A
  • Urticarial papules (raised itchy lumps) - Wheals (raised itchy areas of skin) - Plaques (larger inflamed areas of skin)
10
Q

How do you manage polymorphic eruption of pregnancy?

A

Gets better towards the end of pregnancy, control symptoms:

  • Oral Antihistamines
  • Topical emollients
  • Topical steroids
  • Oral steroids may be used in severe cases
11
Q

What is atopic eruption of pregnancy? When does it appear?

A

Essentially eczema flare up during pregnancy (can occur in pre-existing or first time eczema). Presents in 1st and 2nd trimester of pregnancy.

12
Q

What is the difference between the two types of atopic eruption of pregnancy?

A

E-type, or eczema-type:

  • eczematous, inflamed, red and itchy skin,
  • typically insides of the elbows, back of knees, neck, face and chest.

P-type, or prurigo-type:

  • intensely itchy papules (spots)
  • typically affecting the abdomen, back and limbs.
13
Q

Management of atopic eruption of pregnancy?

A
  • Phototherapy with ultraviolet light (UVB) may be used in severe cases
  • Topical emollients
  • Topical steroids
  • Oral steroids may be used in severe cases
14
Q

What is Melasma also known as? Appearance?

A

“mask of pregnancy” aka chloasma (which means green) increased pigmentation on patches of face, symmetrical, flat, sun exposed areas

15
Q

What causes Melasma?

A

increase female sex hormones –> increased pigmentation

also associated with:

  • sun exposure
  • FHx
  • thyroid disease

Can also occur with:

  • COCP
  • HRT
16
Q

Management of melasma?

A
  • if pregnancy related then tends to fade after birth
  • avoid sun and use suncream
  • makeup to cover it
  • skin lightening cream (hydroquinone or retinoid cream) but not during pregnancy
  • chemical peals / laser but not on NHS
17
Q

What is another name for Pyogenic granuloma?

A

lobular capillary haemangioma

18
Q

What is a Pyogenic granuloma and how does it present?

A
  • benign rapidly growing tumour of capillaries
  • discrete red lump
  • often on fingers (or back, neck or head)
  • 1 or 2cm or bigger
  • bleed and ulcer if injured
19
Q

What is an important differential for pyogenic granuloma?

A

malignancy like nodular melanoma

20
Q

Treatment of pyogenic granuloma?

A

usually resolve after pregnancy - can surgically remove and histology to confirm Dx

21
Q

When do pemphigoid gestations occur and what do they look like?

A
  • occur in second or third trimester
  • itching red, papular, blistering rash
  • near umbilicus
  • spreads to other parts
  • large fluid filled blisters can form
22
Q

What causes pemphigoid gestations?

A
  • rare autoimmune skin condition of pregnancy
  • autoantibodies cause layers of dermis and epidermis to separate
  • antibodies may be in response to placental tissue
23
Q

What are the risk to baby of pemphigoid gestations?

A
  • Fetal growth restriction
  • Preterm delivery
  • Blistering rash after delivery (as the maternal antibodies pass to the baby)
24
Q

How do you manage pemphigoid gestations?

A
  • will usually resolve after delivery
  • Topical emollients
  • Topical steroids
  • Oral steroids may be required in severe cases
  • Immunosuppressants where steroids are inadequate
  • Antibiotics if infection occurs
25
Q
A

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