Which of the following best describes the skin findings in Polymorphic eruption of pregnancy?

Polymorphic eruption of pregnancy, also known as PEP or pruritic urticarial papules and plaques of pregnancy (PUPPP), is characterized by specific skin findings that typically emerge during the third trimester. The most notable feature is the appearance of pruritic (itchy) papules, which can often progress to larger hives and plaques. These lesions usually begin on the abdomen and can spread to other areas, including the thighs and buttocks.

The condition is benign, with no known adverse effects for the fetus, and it resolves shortly after childbirth. This timeline of appearance and resolution is critical in understanding PEP, as it differentiates it from other dermatoses of pregnancy. The timing of onset in the third trimester coupled with the characteristic itchy papules makes this option the most accurate descriptor of the skin findings in this condition.

In contrast, vesicular lesions on the face or a non-specific rash only on the abdomen can suggest other dermatological conditions, while the characteristic resolution of PEP after delivery aligns with the overall picture of this harmless skin ailment in pregnant women.