trunk lesions, skin

Etiology: 1) macules a) erythematous - drug eruption - pityriasis rosea - seborrheic dermatitis - secondary syphilis - Tinea corporis b) pigmented - Albright's syndrome - cafe-au-lait (neurofibromatosis) - Tinea corporis - urticaria pigmentosa - fixed drug eruption c) depigmented - leprosy - Tinea versicolor - Tuberous sclerosis - vitiligo - pityriasis alba 2) papules or plaques a) skin-colored - dermal nevus - molluscum contagiosum - neurofibromatosis b) erythematous - acne - chronic eczematous dermatitis - dermatophytosis - dermatitis herpetiformis - erythema migrans - infectious exanthems - lichen planus - mycosis fungoides - papular urticaria - papulosquamous drug eruption - pityriasis rosea - psoriasis - secondary syphilis - urticaria pigmentosa c) pigmented - Becker's nevus - fixed drug eruption - melanocytic nevus - melanoma - pigmented basal cell carcinoma - seborrheic keratosis - urticaria pigmentosa 3) nodules a) skin-colored - metastatic cancer - neurofibromatosis b) erythematous - cystic acne - metastatic cancer - dermal melanocytic nevus - gumma - leprosy - mycosis fungoides - sarcoidosis c) pigmented a) Kaposi's sarcoma b) melanocytic nevi c) melanoma d) seborrheic keratosis 4) wheals - drug eruptions - insect bites - urticaria - urticarial vasculitis 5) scales - mycosis fungoides - papulosquamous drug eruption - parapsoriasis en plaques - pityriasis rosea - psoriasis - seborrheic dermatitis - secondary syphilis - subacute eczematous dermatitis - Tinea corporis - Tinea versicolor 6) vesicles or bullae - acute eczematous dermatitis - bullous pemphigoid - dermatitis herpetiformis - drug eruption - Herpes zoster - pemphigus vulgaris - scabies - Tinea corporis - varicella 7) pustules - acne - acne conglobata - drug eruption - folliculitis - impetigo contagiosa - psoriasis pustulosa (von Zumbusch) - scabies - Tinea corporis

References

Color Atlas & Synopsis of Clinical Dermatology, Common & Serious Diseases, 3rd ed, Fitzpatrick et al, McGraw Hill, NY, 1997, pg 994-1001