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arm & forearm, wrist lesions, skin
Etiology:
1) papules or plaques
- chronic eczematous dermatitis
- lichen planus (low back, forearms, volar wrists & ankles, hepatitis C)
- lupus erythematosus (dorsum)
- melanocytic nevi
- psoriasis
- scabies
2) nodules
- squamous cell carcinoma
- granuloma annulare
- keratoacanthoma
- melanoma
3) hyperkeratosis
- keratosis pilaris
- solar keratosis
4) scales
- lupus erythematosus
- psoriasis
- eczematous dermatitis, subacute or chronic
- Tinea corporis
5) lichenification
- chronic eczematous dermatitis
6) crusts
- ecthyma
Related
forearm
upper extremity (upper limb)
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