title: Mitten-line hyperpigmentation: a reactive process analogous to sock-line hyperpigmentation.
abstract: A 3-month-old girl presented with a 6-week history of a curvilinear hyperpigmented patch on the left wrist, which began within a day of using a tight mitten. Mitten-line hyperpigmentation is analogous to the recently described condition known as infantile "sock-line hyperpigmentation," or more generally "sock-line bands." Distinguishing this benign condition from child abuse, amniotic band syndrome, and acquired raised bands of infancy is important but sometimes challenging.
authors.affiliation: Division of Dermatology, Department of Internal Medicine and Pediatrics, Washington University School of Medicine and St. Louis Children's Hospital, St. Louis, Missouri 63110, USA. dberk@dom.wust.edu
authors.forename: David R
authors.initials: DR
authors.lastname: Berk
authors.forename: Susan J
authors.initials: SJ
authors.lastname: Bayliss
mesh_terms: D002649:Child Abuse / Q000175:diagnosis; D003020:Clothing / Q000009:adverse effects*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D017495:Hyperpigmentation / Q000175:diagnosis* / Q000209:etiology*; D007223:Infant