Over a decade has passed since the original edition of The Clinician's Guide to Dermatologic Differential Diagnosis first came out. This massive two volume, second edition undertaking features over 4,000 new photographs of rare and puzzingly symptoms, 98 new chapters, and presents a complete update on all references and new findings since the original publication. 

This two volume set is designed to assist in the diagnosis of skin disease by presenting a unique and comprehensive approach to differential diagnosis. Organized alphabetically by physical finding each book in the set is meticulously put together for utility and usability. Volume 1 features a comprehensive list of the variety of physical findings a patient might have. It is the text of the work. Volume 2 serves as the atlas with which to cross reference a physical finding. It includes over 10,000 patient photos and strives to feature the rarer, more difficult to encounter pictures to arm the reader with knowledge beyond the basic. 
Created purely with the reader in mind, The Clinician's Guide to Dermatologic Differential Diagnosis, 2nd Edition strives to enhance the learning and teaching of differential diagnosis within dermatology. These texts are for the patient that defies diagnosis, going through checklists of diseases ensures that no clue is missed in aiding the patient. The sincere hope is that these companion volumes will be helpful in all clinical setting from medical clinic and other specialty clinics to the Dermatology clinic, from medical students to attendings, and from the nurses to the physicians assistants, whether in the academic setting or in the community environment anywhere in the world. 

Table of Contents

Volume 1: The Text
Abdominal Pain, Cutaneous Manifestations
Abscess (Sterile and Non-Sterile)
Acanthosis Nigricans-Like Lesions
Acidosis and Rash in the Newborn
Acneiform Eruptions
Acral Cyanosis
Acral Erythema
Acral Erythema and Scale With or Without Linear Cutoff
Acral Papules and Nodules; Knuckle Papules; Papules, Digital
Acrochordons (Skin Tags)
Acromegalic Features
Acro-osteolysis
Adrenal Disease, Cutaneous Manifestations
Ainhum
Alopecia
Alopecia and Structural Abnormalities of the Nose and Hands
Alopecia, Eyebrows
Alopecia in Neonates, Infants, and Toddlers
Alveolar Hemorrhage
Angioedema
Angiokeratoma Corporis Diffusum
Annular Lesions of Penis with Surface Changes
Annular Lesions with Surface Changes
Annular Lesions Without Surface Changes
Annular Scars
Aortic Disease in the Young
Aphthous Stomatitis
Arthritis and Rash (Polyarthritis and Monoarthritis)
Aseptic Meningitis, Cutaneous Manifestations
Atrichia and Nail Abnormalities
Atrophic Glossitis
Atrophic Lesions
Autoinflammatory Diseases
Bariatric Surgery, Cutaneous Signs of Nutrient Deficiency
Basal Cell Carcinoma Syndromes
Bioweapons
Black Dermatologic Entities
Black Oral Lesions
Blaschko-esque Entities
Blindness, Cutaneous Manifestations
Blue Lunulae
Blue Sclerae
Blue Spots
Blueberry Muffin Lesions, Neonate
Breast Asymmetry
Breast Cancer, Cutaneous Manifestations
Breast Hypertrophy (Gynecomastia) and Breast Masses
Breast Lesions
Buffalo Hump (Cervicodorsal Lipodystrophy)
Bullae and/or Vesicles
Bullae, HemorrhagicBullae, Hemorrhagic, Septic
Bullae in the Neonate
Bullae in Infants and Children
Bullae of the Fingers or Toes
Bullae, Transient, in Infants
Burning Tongue
Butterfly Rash
Café Au Lait Macules (CALMs), Associations
Cardiac and/or Cardiovascular Disease and Skin Lesions
CDKN2a with p14 LOSS
Cellulitis in the Immunocompromised Host
Cellulitis, Infectionsin the Immunocompetent Host
Cellulitis (Pseudocellulitis), Non-infectious Etiologies
Cerebriform Lesions
Chalky Material Extruded From Lesions
Cheilitis (Crusted Lips)
Chemotherapy, Cutaneous Manifestations
Chest Wall Tumors
Cleft Lip and/or Palate (Associated Skin Disorders)
Coarse Facies and Coarse Facial Skin
Cobblestone Appearance of Skin
Cobblestone Appearance of the Oral Mucosa
Cocaine Use, Cutaneous Manifestations
Concentric Lesions
Conjunctival Lesions, Pigmented
Craniosynostosis
Cutaneous Horns
Cutis Laxa-like Appearance
Cutis Verticis Gyrata
Cysts With or Without Drainage
Deafness or Hearing Impairment, Cutaneous Manifestations
Dermatitis (Spongiotic), Differential Diagnosis
Dermatitis, Facial, Pediatric
Dermatitis, Periorbital
Dermatitis, Periorificial
Dermatographism
Desmoplakin Mutations
Diabetes Mellitus, Cutaneous Manifestations
Diarrhea, Cutaneous Manifestations
Dimples
Doughy Skin
Drug Abuse, Cutaneous Manifestations
Dyschromatosis (Hypopigmentation and Hyperpigmentation)
Dyshidrosis
Ear Lesions
Ear, Hard (Petrified Auricles)
Ears, Red
Edema
Edema, Hands
Edema, Head
Edema, Legs
Erosions (Superficial Ulcers)
Erythroderma (Exfoliative Erythroderma)
Erythrodermic Infant
Eschars
Esophageal and Cutaneous Disease
Exanthem
Exfoliation (Desquamation)
Eyelid Lesions
Eyes, Red and Rash
Facial Asymmetry
Facial Dermatitis, Scaly
Facial Edema
Facial Papules and Plaques
Facial Papules
Facial Plaques, Scarring and Non-scarring
Facial Scars
Facial Ulcers
Facies
Fetal Akinesia Deformation Sequence
Fever and Rash, Noninfectious
Fever, Arthritis, and Exanthem
Fibromatoses in Children
Fibrous Tumors, Differential Diagnosis
Figurate Erythemas
Fingertip Lesions
Fingertip Necrosis
Fingertip Ulcers
Flushing Disorders
Follicular Plugging
Foot Ulcers
Freckling of Hands
Gastrointestinal Cancer and Skin Lesions
Gastrointestinal Hemorrhage and Skin Lesions
Gastrointestinal Polyposis and Skin
Gingival Hyperplasia
Gingivitis
Glomerulonephritis, Cutaneous Manifestations
Granulomas 
Granulomatosis With Polyangiitis, Cutaneous Manifestations
Green Pigmentation
Hair Abnormalities
Hair Breakage
Hair Shaft Nodules or Nits (Particulate Matter)
Hair, Premature Graying
Heart Block and Rash
Heart Failure, Cutaneous Manifestations
Heliotrope
Hematologic Malignancies, Cutaneous Signs
Hemihypertrophy (Asymmetric Overgrowth Syndromes)Herpetiform Lesions
Heterochromia Iridum (Iridis)
Hoarseness, Cutaneous Manifestations
Human Papilloma Virus-Associated Immunodeficiency Syndromes
Hyperhidrosis
Hyperkeratotic Lesions
Hyperkeratotic Lesions of Feet
Hyperkeratotic Lesions of Hands
Hyperkeratotic Lesions of the Nipples
Hyperpigmentation in Blaschko's Lines
Hyperpigmentation, Diffuse
Hyperpigmentation, Facial
Hyperpigmentation, Flagellate
Hyperpigmentation, Paronychial
Hyperpigmentation, Patchy
Hyperpigmentation, Segmental or Zosteriform
Hyperpigmented Lesions, Discrete Annular
Hypertrichosis, Generalized
Hypertrichosis, Localized
Hypohidrosis (Anhidrosis)
Hypopigmented Patches or Plaques
Hypoplasia of Distal Phalanges
Hypotrichosis With Growth and Mental Retardation
Ichthyosiform Eruptions
Immune Deficiency Syndromes with Bacterial Infections
Inguinal Lymphadenitis and Rash
Intertrigo, Including Diaper Dermatitis
Iris Lesions, Pigmented
Islands of Sparing
Kaposi's Sarcoma, Differential Diagnosis
Kinky Hair
Knuckle Papules
Knuckles, Pebbly, With Scarring
Lacrimal Gland, Enlarged
Lentigines
Leonine Facies
Leukoderma, Guttate
Leukonychia
Leukoplakia
Linear Erythronychia
Linear Hypopigmentation
Linear Lesions
Linear Lesions Following Veins
Lip Lesions, Pigmented
Lip Papules
Lip Pits
Lips, Swollen
Lipoma Syndromes
Lithium, Cutaneous Side Effects
Livedo Reticularis With or Without Necrosis
Liver Disease, Cutaneous Manifestations and Hepatic Abnormalities of Skin Disease
Lymphadenopathy for the Dermatologist
Macrocephaly
Macrodactyly  (Enlarged Digit)
Malodorous Skin Conditions
Marfanoid Features
Masses of the Head and Neck
Melanoma, Clinical Simulators
Melanonychia
Microcephaly
Micronychia and Anonychia
Midline Facial Nodules of Children
Midline Nasal Masses
Milia or Milia-Like Lesions (Fine White Papules)
Monoclonal Gammopathy, Cutaneous Manifestations
Mucinoses
Mucocutaneous Candidiasis Syndromes
Muscle Weakness and Rash
Myocarditis, Cutaneous Manifestations
Nail Abnormalities
Nasal Infiltration or Enlargement
Nasal Septal Ulceration/Perforations (Rhinophagic Ulceration)
Neck Lesions
Neck Papules
Necrosis
Neural Tube Dysraphism
Nevi, Associated Syndromes
Nipple Dermatitis
Nipple Lesions
No Fingerprint Syndromes (Adermatoglyphia, Absent Dermatoglyphics)
Nodules, Congenital
Nodules, Foot.-Nodules, Juxta-Articular
Nodules, Knee
Nodules, Multilobulated
Nodules, Multiple, Subcutaneous
Nodule, Red, Face
Nodule, Red, Hand
Nodule, Red, Extremities
Nodules, Red or Violaceous, Vascular Appearance
Nodules, Skin Colored
Nodules, Ulcerated
Nodules, Unspecified Location
Normal Skin (Barely Perceptible Lesions)
Obesity Syndromes/Protuberant Abdomen
Onycholysis
Oral Mucosa, Blue Pigmentation
Oral Mucosa, Cysts
Oral Mucosa, Hyperpigmentation
Oral Mucosa, Nodules
Oral Mucosa, Ulceration
Oral Mucosa, Verrucous and Vegetating Lesions
Osteoma Cutis
Overgrowth Syndromes
P63-Associated Disorders
Painful Tumors
Palatal Necrosis (Necrotic Ulcers of the Palate)
Palmar and/or Plantar Erythema
Palmar and/or Plantar Nodules
Palmar Pits and Punctate Keratoses/Dyshidrosis-like Lesions
Palmoplantar Keratodermas
Palmoplantar Keratodermas With Atrichia or Hypotrichosis
Papules, Crusted
Papules, Digital
Papules, Dirty Brown
Papules, Distal Digital, White
Papules, Facial, Solitary
Papules, Flat-Topped
Papules, Follicular (Folliculocentric, Including Folliculitis)
Papules, Hyperkeratotic
Papules and Nodules, Hyperpigmented (With or Without Hyperkeratosis)
Papules, Hyperpigmented With Hypertrichosis
Papules of the Nose
Papules, Periorbital
Papules, Red
Papules, Skin Colored
Papules, Unspecified
Papulosquamous Eruptions
Paraneoplastic Dermatoses
Paraproteinemias, Cutaneous Manifestations
Parathyroid Disease, Cutaneous Manifestations
Paronychia
Parotid Gland Enlargement
Particulate Matter/Exfoliation
Pedunculated (Polypoid) Lesions
Penile Edema, Acute and Chronic
Penile Lesions
Penile Ulcers
Perianal Dermatitis and Hypertrophic Plaques
Perianal Ulcers, Single or Multiple
Periorbital Edema/Erythema (Dermatitis)
Periorbital Facial Nodules, Pediatric
Periostitis
Peripheral Eosinophilia
Peripheral Neuropathy, Cutaneous Manifestations
Phakomatoses
Pharyngitis
Photoeruption and Seborrheic Dermatitis-Like Eruption
Pigmentary Retinopathy or Cone-Rod Dystrophy with Dermatologic Manifestations
Pituitary Disease, Cutaneous Manifestations
Pityriasis Rosea-Like Eruptions
Plantar Erythema
Pneumonia and Pneumonia-associated Disease, Cutaneous Manifestations
Poikilodermas of Adulthood
Poikilodermas of Childhood
Poliosis, Localized or Generalized (Canites)
Polydactyly (PPD, PAP, and Complex Types)
Pore
Port Wine Stain
Preauricular Sinuses (Ear Pits)
Pregnancy, Cutaneous Manifestations
Premature Aging Syndromes (Progeroid Syndromes)
Primary Immunodeficiency and Granuloma Formation
Proptosis
Pruritic Tumors
Pruritus, Anal
Pruritus, Erythematous Papules
Pruritus, Generalized, Without Primary Skin Lesions
Pruritus, Vulvar
Pseudoxanthoma Elasticum-Like Lesions
Psoriasiform Dermatitis
Psoriasiform Plaque, Focal or Solitary
Pterygium (Webbing)
Pterygium of the Nail
Puberty, Delayed (Hypogonadism)
Puberty, Premature
Pulmonary Disease Associated with Skin Disease
Pulsatile Papules
Punctate and Reticulate Hyperpigmentation
Purpura
Purpura, Neonatal
Purpuric Rash and Fever
Pustular and Vesiculopustular Eruptions in the Newborn
Pustules and Pustular Eruptions of the Palms and Soles
Pustules and Pustular Eruptions
Red Chest
Red Elbow
Red Face
Red Feet
Red Nose
Red Patch
Red Plaque
Red Scrotum
Redundant Skin
Renal Failure, Cutaneous Manifestations
Renal Tumors
Reticulated Eruptions
Reticulated Hyperpigmentation
Rhinophymatous Eruptions
Rippling of Skin
Rosette Lesions
Saddle Nose Deformity
Scalp Cysts
Scalp Dermatitis
Scalp Nodules
Scalp Poliosis
Scalp, Red Plaques
Scarring of Neck
Scars, Lesions in a Scar
Sclerodermoid Changes
Scrotal Nodules With Erosions
Scrotal Papules and Nodules
Scrotal Ulcerations
Serpiginous Lesions
Short Stature
Sickle Cell Disease, Cutaneous Manifestations
Sinus Tracts (Pre-auricular Pits)
Spiky Skin
Spinal Dysraphism (Cutaneous Stigmata)
Splinter Hemorrhages
Sporotrichoid Lesions
Spotty Pigmentation of the Face
Striae Distensae (Stretch Marks)
Stroke Syndromes, Cutaneous Manifestations
Swollen Calf
Syndactyly
Synophrys
Tails
Tall Stature Syndromes
Target Lesions
Tattoos, Palpable/Lesions in a Tattoo
Teeth, Abnormalities
Telangiectasias
Testicular Enlargement
Thumbs
Thyroid Disease, Cutaneous Manifestations
Tongue, Enlarged (Macroglossia)
Tongue, Hyperpigmentation
Tongue, Multilobulated
Tongue Necrosis (Lingual Necrosis)
Tongue, Red
Tongue, Scrotal (Plicated Tongue, Fissured Tongue)
Tongue, Solitary Nodules
Tongue, Ulcers
Trichomegaly
Tropical Fever and Rash
Tumors, Giant
Ulcers
Ulcers, Leg
Ulcers, Leg, In a Young Patient
Umbilical Lesions
Umbilical Nodules
Umbilicated Lesions
Unilateral Foot Edema
Urticaria and Urticaria-Like Lesions
Uveitis, Cutaneous Manifestations
Uvula, Enlarged
Valvular Disease, Cutaneous Manifestations
Vasculitis, Granulomatous
Vasculitis, Leukocytoclastic
Vasculitis, Thrombotic
Vasculitis, Types
Vegetative Lesions
Verrucous Lesions of the Legs
Verrucous Lesions, Periungual
Verrucous Plaques
Vulva, Hypertrophic Lesions and Edematous Lesions
Vulvar Edema
Vulvar Erythema With or Without Pruritus
Vulvar Papules and Nodules
Vulvar Ulcers
White Feet
White Macules
White Papules, Nodules, and Plaques
Woolly Hair
Xanthomatous Lesions
Xerosis, Associations and Causes
Yellow Nails
Yellow or Skin-Colored Papules of the Neck
Yellow Papules and Plaques
Yellow Plaques
Yellow Skin (Xanthoderma)
Zebra Stripes
Zosteriform Lesions/Segmental Disorders
Volume 2: The Atlas
Abscess
Acanthosis Nigricans-like Lesions
Acneiform Lesions
Acral Bullae
Acral Cyanosis
Acral Erythema
Acral Erythema and Scale
Acral Necrosis
Acral Nodules
Acral Papules
Acral Papules and Nodules
Acral Pits
Acromegalic Features
Ainhum
Alopecia
Alopecia of the Eyebrows
Angloedema
Annular Lesions of the Penis
Annular Lesions with Scars
Annular Lesions with Surface Change
Annular Lesions without Surface Change
Aphthae
Arthritis and Rash
Atrophic Glossitis
Atrophy
Black Lesions
Blaschko-esque Entities
Blue Spots
Blueberry Muffin Lesions, Neonate
Breast Asymmetry
Breast Lesions
Bullae
Bullae in Children
Bullae in Children, Acral
Bullae, Fingers and Toes
Bullae, Giant
Bullae, Hemorrhagic
Bullae, Hemorrhagic, Septic
Bullae, Neonatal
Butterfly Rash
Café au Lait Macules, Associations
Cellulitis-like Lesions
Cerebriform Lesions
Cheilitis, Including Swollen Lips
Clitoromegaly
Clubbing
Cobblestoned Oral Mucosa
Cobblestoned Skin
Cocaine Abuse
Columbia Presbyterian Medical Center
Concentric Lesions
Conjunctivae, Hyperpigmented
Conjunctivae, Red
Covid-19 Rashes
Crix Belly
Cushingoid Appearance
Cutaneous Horn
Cutis Laxa-like Appearance
Cysts
Dermatitis
Dermatitis of Hands or Feet
Dermatitis of the Palms
Dermatitis, Facial, Adult
Dermatitis, Facial, Pediatric
Dermatitis, Fingertips
Dermatitis, Perianal
Dermatitis, Periorificial, Adult
Dermatitis, Periorificial, Pediatric
Desquamatian (Exfolliation)
Dimples
Dyschromatosis
Dyshidrosifrom Lesions
Ear Lesions
Ear, Hard
Ear, Red
Ear, Swollen
Edema
Edema of Fingers or Toes
Edema of the Foot
Edema of the Hands
Edema of the Legs
Elbow Plaques
Enanthem
Erosions
Erythroderma
Erythroderma in Infancy
Eschar
Exanthem
Exophthalmos
Eyelid Lesions
Eyes, Red
Facial Asymmetry
Facial Edema
Facial Papules
Facial Papules and Plaques
Facial Plaques
Facial Scars
Facial Ulcer
Facies
Fever and Rash
Filiform Lesions
Fingertip Lesions
Fingertip or Toetip Necrosis
Fingertip or Toetip Ulcer
Fissures
Flagellate
Flushing
Foot Ulcers
Gingival Hyperplasia
Gingivitis
Green Skin
Hair Nodules (Particulate Matter)
Hair, Unruly
Hemihypertrophy
Herpetiform Lesions
Hyperelastic Skin
Hyperkeratotic Lesions
Hyperkeratotic Lesions of Feet
Hyperkeratotic Lesions of Hands
Hyperpigmentation, Discrete, Annular
Hyperpigmentation, Generalized
Hyperpigmentation, Patchy
Hyperpigmented Plaques
Hypertrichosis, Generalized
Hypertrichosis, Localized
Hypopigmented Papules
Hypopigmented Patches
Ichthyosiform Eruptions
Intertrigo
Iris Lesions, Pigmented
Islands of Sparing
Knee Lesions
Knuckle Papules
Koilonychia
Lacrimal Gland Enlargement
Lentigines
Leonine Facies
Leukonychia
Leukoplakia
Linear Lesions
Linear Lesions Over Veins or Lymphatics
Lip Lesions
Lip Papules
Lip Pigmentation
Lip Ulcer
Livedo Reticularis With or Without Necrosis
LymphadenopathyMacrocephaly
Macrodactyly
Macromano
Marfanoid Features
Melanoma
Mimickers
Melanonychia
Micronychia and Anonychia
Milia
Mountain Range Lesions
Nails
Nails, Hyperkeratotic
Nasal Destruction, Septal Perforation, or Ulcer
Nasal Infiltration and/or Enlargement
Neck Lesions
Neck Papules
Necrosis
Nevi
Nipple Dermatitis
Nipple Lesions
Nodules of the Elbows
Nodules of the Foot
Nodules of the Hands
Nodules of the Knee
Nodules, Juxta-articular
Nodules, Multilobulated
Nodules, Multiple Subcutaneous
Nodules, Purple Plum
Nodules, Red
Nodules Red, of the Extremities
Nodules, Red, of the Face
Nodules Red, of the Hand
Nodules, Skin Colored
Nodules, Ulcerated
Nodules, Vascular Appearance
Normal Skin (Barely Perceptible Lesions)
Onycholysis
Oral Mucosa, Red Plaques
Oral Mucosa, Ulceration
Oral Mucosal Pigmentation
Oral Nodules
Oral Vegetative Lesions
Palmar and/or Plantar Pits and Punctate Keratoses
Palmar Erythema
Palmoplantar Keratoderma
Papules and Nodules, Hyperpigmented
Papules, Crusted
Papules, Dirty Brown
Papules, Flat-topped
Papules, Follicular
Papules,Hyperkeratotic
Papules, Red
Papulosquamous Eruptions
Papulovesicles
Paraneoplastic Disorders
Paronychia
Parotid Gland Enlargement
Particulate Matter
Peau d'Orange
Pebbly Skin
Pedunculated Lesions
Penile Lesions
Penile Ulcers
Perianal Ulcers, Single or Multiple
Perianal Dermatitis
Perianal Nodules
Periarticular Erythema
Perifollicular Erythema
Periorbital Edema, Erythema
Periorbital Papules
Photodermatitis-Seborrheic Dermatitis
Pityriasis Rosea-like
Plantar Nodules
Poikilodermas, Childhood and Adulthood
Pore
Pruritus Without Rash
Pseudoxanthoma Elasticum-like Changes
Psoriasifrom Dermatitis
Psoriasiform Plaque, Solitary or Localized
Pterygium of the Nails
Pterygium Unguis Inversum
Purpura
Purpura in the Neonate
Purpura of the Face
Purpura with Fever
Pustular Eruptions
Pustular Eruptions of Infancy
Pustular Eruptions of the Face
Pustular Eruptions of the Neonate
Pustular Eruptions of the Palms and Soles
Red Elbow
Red Face
Red Feet
Red Hand
Red Knee
Red Leg
Red Lunula
Red Nose
Red Patch
Red Plaque
Red Scrotum
Redundant Skin
Reticulated
Reticulated Hyperpigmentation
Rosette Lesions
Scalp Dermatitis
Scalp Nodules
Scalp Ulcers
Scalp, Red Plaques
Scars, Lesions in Scars
Sclerodermoid Changes
Scrotal Edema
Scrotal Papules and Nodules
Scrotal Ulcers
Serpiginous Lesions
Short Stature
Sinus Tracts
Sporotrichoid Pattern
Stellate Lesions
Strange But True
Striae
Syndactyly
Targetoid Lesions
Tattoos
Tattoos, Concentration Camp
Teeth, Abnormalities
Telangiectasias
Tongue Hyperpigmentation
Tongue Lesions
Tongue Papules
Tongue Ulcers
Tongue, Enlarged (Macroglossia)
Tongue, Multilobulated
Tongue, Red
Trichomegaly
Tumors, Giant
Ulcers
Ulcers of the Foot
Ulcers of the Hand
Ulcers of the Leg
Umbilical Lesions
Umbilicated Lesions
Urticaria and Urticarial-like Lesions
Uvula
Vegetative Plaques
VerrucousPlaques
Vulvar Edema
Vulvar Erythema
Vulvar Hyperpigmentation
Vulvar Hypertrophic Plaques
Vulvar Papules and Nodules
Vulvar Ulcers
Wallace's Line
White Macules or Patches
White Papules, Nodules, or Plaques
Xerosis
Yellow Papules and Nodules
Yellow Skin
Zebra Stripes
Zosteriform Eruptions.