| Papulosquamous |
| Seborrheic dermatitis |
| Psoriasis |
| Dermatophytoses |
| Mycosis fungoides |
| Atopic eczema |
| Pityriasis rosea |
| Secondary syphilis |
| Lichen planus |
| Tinea versicolor |
| Vesiculobullous |
| Contact dermatitis |
| Herpes simplex |
| Herpes zoster |
| Bacterial infections |
| Kawasaki's disease |
| Pemphigus vulgaris |
| Bullous pemphigoid |
| Scabies |
| Erythema multiforme |
| Erythema chronicum migrans |
| Erythema nodosum |
| Purpura |
| Papulonodular |
| Acne vulgaris |
| Rosacea |
| Granulomas |
| Tumors |
| Benign |
| Verruca vulgaris |
| Molluscum contagiosum |
| Melanocytic nevus |
| Skin tags |
| Seborrheic keratosis |
| Vascular neoplasms |
| Epidermoid cysts |
| Malignant |
| Basal cell carcinoma |
| Squamous cell carcinoma |
| Bowen's disease |
| Paget's disease |
| Malignant melanoma |
| Pigmentary |
| Generalized |
| Addison's disease |
| Acromegaly |
| Hemochromatosis |
| Ochronosis |
| Tissue storage lipoidoses |
| Localized |
| Peutz-Jeghers syndrome |
| Leopard syndrome |
| Generalized neurofibromatosis |
| Hypopigmentation |
| Sclerosis and induration |
| Scleroderma |
| Eosinophilic fasciitis |
| Sclerederma |
| Erysipelas and cellulites |
| Atrophy |
| Necrobiosis lipoidica diabeticorum |
| Lichen sclerosus et atrophicus |
| Ulcerations |
| Chronic arterial ulcers |
| Stasis ulcers |
| Vasculitic ulcers |
| Pyoderma gangrenosum |
| Infectious ulcers |
From: Chapter 105, Skin
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