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perianal lesions, skin
Etiology:
1) macules
- candidiasis
- psoriasis
- seborrheic keratosis
- Tinea corporis
- vitiligo
2) papules or plaques
- chronic eczematous dermatitis
- condylomata acuminata
- condyloma lata
- psoriasis
- secondary syphilis
3) vegetative lesions
- condylomata acuminata
- condylomata lata (syphilis)
4) scales
- candidiasis
- psoriasis
- subacute eczematous dermatitis
- Tinea corporis
5) lichenification
- chronic eczematous dermatitis (pruritus ani)
6) vesicles
- acute eczematous dermatitis
7) erosions
- candidiasis
- syphilitic chancre
8) fissures
- chronic eczematous dermatitis
- psoriasis
9) ulcers
- syphilitic chancre
Related
anorectal disease
perianal region
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