Pruritic urticarial papules and plaques of pregnancy (polymorphic eruption of pregnancy): two unusual cases.

We report two unusually florid cases of polymorphic eruption of pregnancy (PEP) or pruritic urticarial papules and plaques of pregnancy, the first occurring in a triplet pregnancy, and the second with some clinical features more suggestive of pemphigoid gestationis (PG). The first case responded to treatment with moderately potent topical steroids while the second case required a short course of systemic steroids. Our first case is the only reported case of PEP occurring during a triplet pregnancy. We discuss the effect of multiple pregnancy on PEP and some distinguishing factors between PEP and PG.