Genital lesions

Differential Diagnosis

• Elevated
  • Vesicles: herpes simplex virus
  • Papules or plaques
    • Infectious
      • Molluscum contagiosum
      • Human papillomavirus (condyloma acuminata)
      • Secondary syphilis (condyloma lata)
      • Reiter syndrome (circinate balanitis)
    • Non-infectous
      • Inflammatory
        • Lichen planus
        • Psoriasis
      • Neoplastic
        • Squamous cell carcinoma, including Bowen disease (SCC in situ)
        • Melanoma
• Depressed
  • Erosions or ulcers
    • Painful
      • Herpes simplex virus
      • Haemophilus ducreyi (chancroid)
      • Behçet syndrome
      • Pemphigus vulgaris
      • Lichen sclerosis
      • Erosive lichen planus
    • Painless
      • Primary syphilis (chancre)
      • Granuloma inguinale
      • Lymphogranuloma venereum
  • Excoriations
    • Scabies
    • Pubic lice