title: Pigmentary demarcation lines of pregnancy with erythema.
abstract: We describe two patients with pregnancy-associated pigmentary demarcation lines overlapped by erythematous changes. In both cases, there was a symmetrical well-defined erythematous pigmentation involving the buttocks and flexor aspects of the legs. After normal delivery the erythema disappeared within 7-10 days, followed by slow resolution of the pigmentation. Compression by the enlarged uterus of peripheral nerves issuing at S1-S2 is proposed as a mechanism of these changes.
authors.affiliation: Department of Dermatology, Tohoku University School of Medicine, Sendai, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Ozawa
authors.forename: M
authors.initials: M
authors.lastname: Rokugo
authors.forename: H
authors.initials: H
authors.lastname: Aoyama
mesh_terms: D000328:Adult; D004890:Erythema / Q000175:diagnosis*; D005260:Female; D006801:Humans; D010859:Pigmentation Disorders / Q000175:diagnosis*; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis*