VisualDx: Essential Dermatology in Pigmented Skin

VisualDx: Essential Dermatology in Pigmented Skin combines a desk reference and a powerful online decision support
system to give you point-of-care assistance in diagnosing and managing skin diseases in darkly pigmented skin. The book
is written and edited by clinicians with extensive experience caring for patients with pigmented skin, including
Hispanics, African-Americans, and diverse patients from many countries. It features over 700 full-color illustrations
depicting the distinctive presentations of skin diseases in adults and children with darkly pigmented skin. These
illustrations are valuable aids to both diagnosis and patient teaching because they show patients how the disease
appears in skin types resembling their own pigmentation.

The text is organized by skin lesion morphology to assist the differential diagnostic process. It covers 195 skin
disorders, with illustrations and succinct text on visual signs and symptoms, diagnostic pearls, best laboratory tests,
differential diagnosis, and treatment. An additional chapter covers dermatologic therapy.

The online clinical decision support system can be accessed on a desktop computer, laptop, tablet, or mobile device. It
enables you to search by patient findings, such as visual clues, signs and symptoms, medications, medical history, and
travel history, to build a custom differential diagnosis. Thousands of images show both typical and variant disease
presentations. Patient information sheets are also included


■Over 700 full-color images and 195 common skin disorders
■Shows distinctive presentations of diseases in darkly pigmented skin
■Organized by lesion morphology to aid in differential diagnosis
■Includes common mistakes and clinical pearls
■Outlines simple tests to order or perform
■Provides practical therapy and management
The online/mobile VisualDx decision support system is a powerful point-of-care clinical tool.

■Can be accessed on desktop computer, laptop, tablet, or mobile device.
■Functionality allows you to build a custom differential diagnosis from patient findings, such as lesion features,
disease distribution, onset of disease, and symptoms and signs in other organ systems.
■VisualDx searches structured relationships between patient findings and diagnoses, derived from the medical
literature. This yields much more accurate, comprehensive, targeted, and patient-specific differential diagnoses than
generic search engines that search text or medical references organized by diagnosis.
■Website contains thousands of images showing both typical and variant disease presentations.
■Patient information sheets are included.



1: Approach to the Dermatology Patient

2: Examination of Pigmented Skin

3: Morphology and Distribution

4: Essential Skin Diseases

4-1: Multiple Lesions or Rash in the Febrile, Ill, or Toxic Patient Scarlet Fever Human Immunodeficiency Virus (HIV)
Primary Infection Rocky Mountain Spotted Fever Secondary, Tertiary, and Congenital Syphilis Necrotizing Fasciitis Drug
Hypersensitivity Syndrome (DRESS Syndrome) Kawasaki Disease Systemic Lupus Erythematosus (SLE) Disseminated Purpuras
Erysipelas Ecthyma Gangrenosum Toxic Shock Syndrome Exfoliative Dermatitis Calciphylaxis Leukocytoclastic Vasculitis
and Gonococcemia Henoch-Sch\u00f6nlein Purpura Frostbite Viral Exanthems (Rubeola [Measles], Cytomegalovirus [CMV]
Infection, and Asymmetric Periflexural Exanthem of Childhood) Erythema Infectiosum (Fifth Disease) Gianotti-Crosti
Syndrome Cellulitis Dermatomyositis Erythema Annulare Centrifugum and Lyme Disease

4-2 : Multiple Erythematous Lesions or Rash in the Well Patient Drug Eruption (Morbilliform and Urticarial) Pityriasis
Rosea Pruritic Urticarial Papules Plaques of Pregnancy (PUPPP) Urticaria, Angioedema, and Dermographism Drug-Induced
Photosensitive Reaction

4-3: Lesions with Prominent Pigmentary Change Acanthosis Nigricans Peutz-Jeghers Syndrome and Linear and Whorled Nevoid
Hypermelanosis Genetic Disorders of Pigmentation Pityriasis Alba Confluent and Reticulated Papillomatosis Urticaria
Pigmentosa and Mastocytoma Congenital Nevus Including Giant Congenital Nevus Drug-Induced Pigmentation Erythema
Dyschromicum Perstans Fixed Drug Eruption Lentigo Simplex Melanoma, Acral Lentiginous Melanoma, Lentigo Maligna, and
Lentigo Maligna Melanoma Oral Melanotic Macule Melasma Flat Pigmented Lesions Spitz Nevus Nevus, BeckerÆs Nevi
(Moles) Nevus, Blue Post-Inflammatory Hyperpigmentation and Notalgia Paresthetica Seborrheic Keratosis and Dermatosis
Papulosa Nigra Vitiligo

4-4 : Lesions with Prominent Vasculature or Purpura Physical Abuse Stasis Dermatitis, Stasis Ulcer (Venous Ulcer), and
Capillaritis Cutis Marmorata Vascular Malformations Kaposi Sarcoma Livedo Reticularis and Erythema Ab Igne Port-Wine
Stain Pyogenic Granuloma Spider Angioma Subacute Bacterial Endocarditis (SBE) RaynaudÆs Phenomenon

4-5 : Smooth Papules / Plaques / Nodules – Few Dermatofibromas Solitary Neurofibroma Basal Cell Carcinoma Pilomatricoma
Keloid and Hypertrophic Scar Xanthelasma Palpebrarum Juvenile Xanthogranuloma

4-6 : Smooth Papules / Plaques / Nodules РMany Molluscum Contagiosum Sarcoidosis Leprosy (Hansen̠s Disease)
Lymphomatoid Papulosis Tuberous Sclerosis Pseudoxanthoma Elasticum Appendageal Tumors Flat Warts Miliaria Rubra
Granuloma Annulare Histiocytosis Polymorphous Light Eruption Neurofibromatosis Xanthomas

4-7 : Scaling or Crusted Papules / Plaques / Nodules – Few Epidermal Nevus Nummular Dermatitis Common Warts Pediculosis
Corporis (Body Lice) Lichen Simplex Chronicus Lichen Striatus Discoid Lupus Erythematosus Squamous Cell Carcinoma Tinea
Corporis Non-Bullous Impetigo Pityriasis lichenoides et varioliformis acuta (PLEVA)

4-8: Scaling or Crusted Papules / Plaques / Nodules – Many Xerosis and Eczema Craquel\u00e9 (Asteatotic Dermatitis)
Ichthyoses Seborrheic Dermatitis Lichen Planus and Lichen Nitidus Lupus Erythematosus, Subacute Cutaneous Psoriasis and
Pustular Psoriasis Tinea Versicolor Keratosis Pilaris Prurigo Nodularis Scabies Atopic Dermatitis (Eczema) Folliculitis
Perforating Diseases Neurotic Excoriations

4-9: Fluid-Filled Lesions (Vesicles / Bullae / Pustules) Infantile Acropustulosis Bullous Disorders Incontinentia
Pigmenti Contact Dermatitis Erythema Multiforme Minor Erythema Toxicum Neonatorum Hand-Foot-and-Mouth Disease Neonatal
Herpes Herpes Zoster (Shingles) Bullous Impetigo Larva Migrans Lymphangioma Circumscriptum (Microcystic Lymphatic
Malformation) Miliaria Crystallina Pustular Psoriasis (see Psoriasis, page…) Transient Neonatal Pustular Melanosis
Staphylococcal Scalded Skin Syndrome Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis Graft-Versus-Host Disease
Varicella Porphyria Cutanea Tarda Neonatal Candidiasis

4-10 : Atrophy / Sclerosis Scleroderma and CREST Syndrome Radiation Dermatitis Striae and Steroid Atrophy Necrobiosis
Lipoidica and Diabetic Dermopathy Neonatal Lupus Erythematosus Erythrasma and Intertrigo Ischemic Ulcer (Arterial
Ulcer) Pressure Ulcer (Decubitus Ulcer) Factitial Dermatitis and Factitial Ulcers Pyoderma Gangrenosum

4-11: Limited Number of Lesions or Growths Soft Tissue Tumors Cysts Ecthyma Erythema Nodosum Gout Hidradenitis
Suppurativa Cutaneous T-Cell Lymphomas Morphea Bite or Sting, Arthropod (Insect Bites) Bite, Spider Acrochordon
Calcinosis Cutis Abscess and Abscess of the Newborn MajocchiÆs Granuloma Deep Fungus and Other Infections Cutaneous
Leishmaniasis SweetÆs Syndrome (Acute Febrile Neutrophilic Dermatosis) Mycobacterium Marinum and Other Atypical
Mycobacterial Infections Furuncle and Carbuncle

4-12: Special Locations Multiple Facial / Neck Lesions Pseudofolliculitis Barbae, Tinea Barbae, and Tinea Faciei Facial
Dermatitis- Rosacea and Perioral Dermatitis Acne Milia Acne Keloidalis Nuchae Mouth Aphthous Ulcers Oral Candidiasis
(Thrush) and Periodontal Disease Orofacial Herpes Leukoplakia, Oral Squamous Cell Carcinoma (SCC), and Hairy
Leukoplakia Oral Melanotic Melanoma (see Oral Melanotic Macule, page…) Nails Onychomycosis Paronychia Pseudomonas Nail
Infection Palms and Soles Juvenile Plantar Dermatosis Palmoplantar Keratoderma Tinea Pedis Plantar Warts, Corns
(Clavi), and Calluses Dyshidrotic Dermatitis and Palmoplantar Pustulosis Blistering Distal Dactylitis Perineum Genital
Candidiasis Condyloma Acuminatum (Genital Wart, HPV) Angiokeratoma of Scrotum Diaper Dermatitis- Irritant and Candida-
associated Lichen Sclerosus et Atrophicus Tinea Cruris Pediculosis Pubis (Pubic Lice) Primary Syphilis and Other
Sexually Transmitted Diseases Genital Herpes Scalp A Practical Approach to Patients with Hair Problems Non-Scarring
Alopecia Ectodermal Dysplasias Scarring Alopecia Cephalohematoma Pediculosis Capitis

5: Medical, Surgical, and Cosmetic Dermatologic Therapies

Index