Differential Diagnosis in Dermatology

Differential Diagnosis in Dermatology

By Boni E. Elewski, MD, President of the American Academy of Dermatology; Professor of Dermatology, Department of Dermatology, University of Alabama at Birmingham; Lauren Hughey, Department of Dermatology, University of Alabama at Birmingham; and Margaret E. Parsons, MD, University of California at Dvis Medical Center, Department of Dermatology; Associate Clinical Professor, Dermatology Consultants of Sacramento, Sacramento, CA


Definition Section

Syndromes

Acanthosis nigracans * Acantholysis * Acneiform * Acral lesions * Acutely ill macular rash * Acutely ill purpuric rash * Acutely ill vesiculopustular rash * Alopecia * Angiokeratoma-like * Anhidrosis/hypohidrosis * Annular lesions * Atrophic lesions * Axillary lesions * Balanitis * Bites * Blisters/Bulla * Chancre * Cysts * Diabetic skin changes * Diaper dermatitis * Digital tumors * Depigmented/white macules * Drug eruptions * Ear infiltrated lesions * Elbow and knee lesions * Eczematous dermatitis * Edema * Eosinophilia * Epidermolytic keratosis * Exanthem pediatric * Eschars * Erythroderma * Exfoliative generalized dermatitis * Eyelid tumors * Follicular hyperkeratosis * Follicular papules * Foot neoplasms * Gangrenous lesions * Genital ulcers * Granulomas * Hair abnormal texture * Halo lesions * Hirsutism * Hypertrichosis * Hyperpigmentation * Hypertrophy * Hypomelanosis * Hypotrichosis * Icthyosis * Immunofluorescence * Infiltrative disorders * Inguinal nodules * Koebnerization * Lentigenes, multiple * Leukocytoclastic vasculitis * Leukoderma * Leukoplakia * Linear lesions * Livedo reticularis * Lymphoreticular proliferative cutaneous diseases * Lip lesions * Macroglossia * Macules * Malar erythema * Malignancy, cutaneous markers * Melanoma classification * Morbilliform eruption * Nails * Necrosis of skin * Nipple hyperkeratosis * Nipple papules/nodules * Nodules * Nummular lesions * Oral hyperkeratosis * Oral ulcers * Palmar pits * Palmo-plantar keratoderma * Papules * Papulosquamous * Pearly lesions * Penile lesions * Perianal lesions and stenosis * Perioral dermatitis * Periorbital edema * Perleche * Petechiae * Photoeruptions * Pigmentation-diffuse * Plaques * Poikiloderma * Pregnancy skin changes * Pruritus * Punctate keratosis * Purpura * Pustules * Reticular pigmentation * Surgical scar nodules * Telangectasias * Urticaria * Ulcers of leg * Vascular lesions * Vulvar lesions * Xanthomas