Genital Lesions - Differential Diagnosis Algorithm Elevated - Vesicles: • Herpes simplex Elevated - Papules / Plaques - Infectious: • Molluscum contagiousum • Human papilloma virus warts (condyloma acuminata) • Secondary Syphilis (condyloma lata) • Reiter's syndrome (circinate balanitis) Elevated - Papules / Plaques - Non-infectious - Inflammatory: • Lichen planus • Psoriasis Elevated - Papules / Plaques - Non-infectious - Malignant: • Squamous cell carcinoma (can be in situ) • Melanoma Depressed - Excoriations • Scabies • Pubic lice Depressed - Erosions/Ulcers - Painful • Herpes simplex • Haemophilus ducreyi (chancroid) • Behcet's syndrome • Pemphigus vulgaris • Lichen Sclerosis • Erosive Lichen Planus Depressed - Erosions/Ulcers - Painless • Primary syphilis (chancre) • Granuloma Inguinale • Lymphogranuloma venereum #Genital #skinlesions #dermatology #Differential #Diagnosis #Algorithm #causes
