Last reviewed: November 2017
Last updated: December  2017

Summary

Differentials

Common

  • Psoriasis
  • Seborrhoeic dermatitis
  • Atopic dermatitis
  • Xerosis
  • Perioral dermatitis
  • Acne vulgaris
  • Human papillomavirus (HPV) - warts or condylomata acuminata
  • Herpes simplex virus (HSV)
  • Varicella zoster virus (VZV)
  • Folliculitis
  • Syphilis (Treponema pallidum)
  • Scabies
  • Insect bite
  • Candida
  • Basal cell carcinoma (BCC)
  • HIV-related lipodystrophy
  • Nail lesions
  • Gonorrhoea
  • Chlamydia/LGV
  • Aphthous ulcers

Uncommon

  • Photodermatitis
  • Prurigo nodularis (PN)
  • Papular pruritic eruption of HIV (PPE)
  • Eosinophilic folliculitis (EF)
  • Cutaneous manifestations of reactive arthritis (Reiter's syndrome)
  • Molluscum contagiosum virus (MCV)
  • Oral hairy leukoplakia (OHL) (Epstein-Barr virus)
  • Human immunodeficiency virus (primary or acute infection)
  • Bullous impetigo
  • Ecthyma
  • Botryomycoses
  • Bacillary angiomatosis
  • Leishmaniasis
  • Dermatophytosis
  • Kaposi's sarcoma
  • Melanoma
  • Squamous cell carcinoma
  • Morbilliform rash
  • Drug rash with eosinophilia and systemic symptoms (DRESS)
  • Toxic epidermal necrolysis (TEN)/Stevens-Johnson Syndrome (SJS)
  • Immune reconstitution inflammatory syndrome (IRIS)
  • Chancroid
  • Merkel cell carcinoma
  • Leiomyosarcoma

Contributors

Authors VIEW ALL

Senior Doctor

Walk In Ruhr

Center for Sexual Health and Medicine

Department of Dermatology

University of Bochum

Borkum

Germany

Disclosures

AP declares that she has no competing interests.

Senior Doctor

Walk In Ruhr

Center for Sexual Health and Medicine

Department of Dermatology

University of Bochum

Bochum

Germany

Disclosures

NB declares that he has no competing interests.

Dr Anja Potthoff and Dr Norbert Brockmeyer would like to gratefully acknowledge Dr Patrick Unemori and Dr Kieron Leslie, the previous contributors to this monograph. PU and KL declare that they have no competing interests.

Peer reviewers VIEW ALL

Professor of Tropical Medicine

Visiting Professor

Hainan Medical College

Haikou

China

Disclosures

VW declares that he has no competing interests.

Retired Consultant Genitourinary Physician

Leeds General Infirmary

at present, Honorary Sub Dean Northern and Yorkshire

Royal Society of Medicine

UK

Disclosures

MAW declares that he has no competing interests.

Assistant Clinical Professor

Department of Dermatology

University of California San Francisco

San Francisco

CA

Disclosures

JCD declares that she has no competing interests.

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