Chapter 5. Psoriasis

  1. Richard P. J. B. Weller MD, FRCP (Edin) Senior Lecturer1,
  2. John A. A. Hunter OBE, BA, MD, FRCP (Edin) Professor Emeritus of Dermatology2,
  3. John A. Savin MA, MD, ChB, FRCP, DIH Former Consultant Dermatologist3 and
  4. Mark V. Dahl BA, MD Professor of Dermatology former Chairman Professor Emeritus4,5

Published Online: 14 JAN 2009

DOI: 10.1002/9781444300086.ch5

Clinical Dermatology, Fourth Edition

Clinical Dermatology, Fourth Edition

How to Cite

Weller, R. P. J. B., Hunter, J. A. A., Savin, J. A. and Dahl, M. V. (2008) Psoriasis, in Clinical Dermatology, Fourth Edition, Blackwell Publishing Ltd., Oxford, UK. doi: 10.1002/9781444300086.ch5

Author Information

  1. 1

    Department of Dermatology, University of Edinburgh, Edinburgh, UK

  2. 2

    University of Edinburgh, Edinburgh, UK

  3. 3

    The Royal Infirmary, Edinburgh, UK

  4. 4

    College of Medicine, Mayo Clinic Arizona, Scottsdale, AZ, USA

  5. 5

    University of Minnesota Medical School, Minneapolis, MN, USA

Publication History

  1. Published Online: 14 JAN 2009
  2. Published Print: 7 MAR 2008

ISBN Information

Print ISBN: 9781405146630

Online ISBN: 9781444300086



  • psoriasis - chronic, non-infectious, inflammatory skin disorder;
  • epidermal cell kinetics;
  • Köbner phenomenon;
  • psoriasis precipitating factors;
  • plaque pattern and guttate pattern;
  • scalp psoriasis;
  • palmar psoriasis;
  • acute generalized pustular psoriasis;
  • psoriasis treatments - topical, ultraviolet radiation, systemic and combined;
  • Photochemotherapy (PUVA) and Combination therapy


This chapter contains sections titled:

  • Cause and pathogenesis

  • Precipitating factors

  • Histology (Fig. 5.2)

  • Presentation

  • Complications

  • Differential diagnosis

  • Investigations

  • Treatment

  • Further reading