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genitalia lesions, skin
Etiology:
1) macules
- seborrheic dermatitis
- secondary syphilis
- vitiligo
2) papules or plaques
- bowenoid papulosis
- chronic eczematous dermatitis
- condyloma acuminata
- lichen planus
- melanoma
- psoriasis
- scabies
- secondary syphilis
3) nodules or tumors
- melanoma
- psoriasis
- scabies
- squamous cell carcinoma
4) vegetative lesions
- condyloma acuminata
- condyloma lata
- squamous cell carcinoma
5) lichenification
- chronic eczematous dermatitis
6) scales
- candidiasis
- psoriasis
- seborrheic dermatitis
- secondary syphilis
7) vesicles or bullae
- acute eczematous dermatitis
- erythema multiforme
- Herpes simplex
- scabies
8) pustules
- candidiasis
- scabies
9) erosions
- Herpes simplex (tender nodes may be present)
- syphilitic chancre (non tender inguinal nodes)
- fixed drug eruption
- trauma
10) ulcers
a) acute or subacute
- syphilitic chancre
- chancroid
b) chronic
- squamous cell carcinoma
- donovanosis
- granuloma inguinale
11) excoriations
- scabies
Related
genitalia
General
differential diagnosis of skin lesions by body region
References
Color Atlas & Synopsis of Clinical Dermatology, Common
& Serious Diseases, 3rd ed, Fitzpatrick et al, McGraw Hill, NY,
1997, pg 994-1001