Reactive perforating collagenosis associated with scabies in a diabetic

Authors

  • T Brinkmeier,

    Corresponding author
    1. Department of Dermatology, Klinikum Dortmund gGmbH, and University of Witten/Herdecke, Beurhausstrasse 40, D-44137 Dortmund, Germany.
      * Corresponding author, tel. +49 0231953 21629; fax +49 0231953 20139; E-mail: t.brinkmeier@derma.de
    Search for more papers by this author
  • RA Herbst,

    1. Department of Dermatology, Klinikum Dortmund gGmbH, and University of Witten/Herdecke, Beurhausstrasse 40, D-44137 Dortmund, Germany.
    Search for more papers by this author
  • PJ Frosch

    1. Department of Dermatology, Klinikum Dortmund gGmbH, and University of Witten/Herdecke, Beurhausstrasse 40, D-44137 Dortmund, Germany.
    Search for more papers by this author

* Corresponding author, tel. +49 0231953 21629; fax +49 0231953 20139; E-mail: t.brinkmeier@derma.de

Abstract

Reactive perforating collagenosis (RPC) in adults commonly manifests in patients with diabetes mellitus. Pruritus and consequent induced scratching have been identified as the bases for the evolution of this skin disease. We present the unusual case of a 55-year-old female diabetic with characteristic umbilicated skin lesions and a long history of scabies. Histology from a crusty nodule revealed transepidermal elimination of collagen. Following antiscabietic treatment, two courses of oral doxycycline demonstrated beneficial effects in controlling the perforating skin disorder.

Ancillary