VisualDx: Essential Dermatology in Pigmented Skin

Preface
Acknowledgments
Introduction to the VisualDx: Essential Dermatology Series
Introduction to VisualDx: Essential Dermatology in Pigmented Skin Online

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-Schönlein 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, Becker’s
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)
Raynaud’s 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 – Many
Molluscum Contagiosum
Sarcoidosis
Leprosy (Hansen’s 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 Craquelé (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
Majocchi’s Granuloma
Deep Fungus and Other Infections
Cutaneous Leishmaniasis
Sweet’s 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

• 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.