How is clinical presentation of pemphigoid gestationis?

• The initial clinical manifestations are erythematous urticarial patches and plaques, which are typically periumbilical • These lesions progress to tense vesicles and blisters • Some patients may present with urticarial plaques and may never develop blisters • These hivelike plaques differ from true urticaria because of their relatively fixed nature • The rash spreads peripherally, often sparing the face, palms, and soles. Mucosal lesions occur in less than 20% of cases