Sections
Index
Symptoms
Cardiovascular Disorders
Clinical Pharmacology
Critical Care Medicine
Dental Disorders
Dermatologic Disorders
Ear, Nose, and Throat Disorders
Endocrine and Metabolic Disorders
Eye Disorders
Gastrointestinal Disorders
Genitourinary Disorders
Geriatrics
Gynecology and Obstetrics
Hematology and Oncology
Hepatic and Biliary Disorders
Immunology; Allergic Disorders
Infectious Diseases
Injuries; Poisoning
Musculoskeletal and Connective Tissue Disorders
Neurologic Disorders
Nutritional Disorders
Pediatrics
Psychiatric Disorders
Pulmonary Disorders
Special Subjects
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M
N
O
P
Q
R
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T
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V
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X
Y
Z
Abdominal Pain, Acute
Abdominal pain, Chronic
Alopecia
Amenorrhea
Amnesia
Anosmia
Bleeding, Excessive
Breast Lumps
Chest Pain
Constipation in Adults
Constipation in Children
Cough in Adults
Cough in Children
Crying
Diarrhea in Adults
Diarrhea in Children
Diplopia
Dizziness
Dry Mouth
Dysmenorrhea
Dyspepsia
Dysphagia
Dyspnea
Dysuria
Earache
Ear Discharge
Edema
Edema During Late Pregnancy
Epistaxis
Erectile dysfunction
Eyelid Swelling
Eye Pain
Fever
Fever, Acute, in Adults
Fever, Chronic (FUO)
Fever in Infants and Children
Floaters
Gas
Gastrointestinal Bleeding
Halitosis
Headache
Hearing Loss
Hearing Loss: Sudden Deafness
Hematospermia
Hematuria
Hemoptysis
Hiccups
Hirsutism
Insomnia and Excessive Daytime Sleepiness
Itching
Itching, Anal
Jaundice in Adults
Jaundice in Neonates
Joint Pain, Monarticular
Joint Pain, Polyarticular
Knee pain
Lump in Throat
Nasal Congestion and Rhinorrhea
Nausea and Vomiting During Early pPregnancy
Nausea and Vomiting in Adults
Nausea and Vomiting in Infants and Children
Neck and Back Pain
Neck Mass
Nipple Discharge
Orthostatis Hypotension
Pain
Pain, Chronic
Palpitations
Pelvic Pain
Pelvic Pain During Early Pregnancy
Polyuria
Priapism
Red Eye
Scrotal Pain
Sore Throat
Stomatitis
Stridor
Syncope
Tearing
Tinnitus
Toothache
Tremor
Urinary Frequency
Urinary Incontinence in Adults
Urinary Incontinence in Children
Urinary Retention
Urticaria
Vaginal Bleeding
Vaginal Bleeding During Early Pregnancy
Vaginal Bleeding During Late Pregnancy
Vaginal Itching and Discharge
Vision, Blurred
Vision Loss, Acute
Weakness, Generalized
Wheezing
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Health Care Professionals
Cardiovascular Disorders
Clinical Pharmacology
Critical Care Medicine
Dental Disorders
Dermatologic Disorders
Ear, Nose, and Throat Disorders
Endocrine and Metabolic Disorders
Eye Disorders
Gastrointestinal Disorders
Genitourinary Disorders
Geriatrics
Gynecology and Obstetrics
Hematology and Oncology
Hepatic and Biliary Disorders
Immunology; Allergic Disorders
Infectious Diseases
Injuries; Poisoning
Musculoskeletal and Connective Tissue Disorders
Neurologic Disorders
Nutritional Disorders
Pediatrics
Psychiatric Disorders
Pulmonary Disorders
Special Subjects
Merck Manual
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Health Care Professionals
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Dermatologic Disorders
Dermatologic Disorders
Approach to the Dermatologic Patient
Evaluation of the Dermatologic Patient
Description of Skin Lesions
Lesion Type (Primary Morphology)
Lesion Configuration (Secondary Morphology)
Texture
Location and Distribution
Color
Other Clinical Signs
Diagnostic Tests for Skin Disorders
Biopsy
Scrapings
Wood light
Tzanck testing
Diascopy
Itching
Pathophysiology
Mediators
Mechanisms
Etiology
Skin disorders
Systemic disorders
Drugs
Evaluation
History
Physical examination
Red flags
Interpretation of findings
Testing
Treatment
Skin care
Topical drugs
Systemic drugs
Geriatrics Essentials
Key Points
Urticaria
Pathophysiology
Etiology
Evaluation
History
Physical examination
Red flags
Interpretation of findings
Testing
Treatment
Drugs
Angioedema
Geriatrics Essentials
Key Points
Skin Manifestations of Internal Disease
Internal cancer
Endocrinopathies
GI disorders
Principles of Topical Dermatologic Therapy
Principles of Topical Dermatologic Therapy
Vehicles
Powders
Liquids
Combination vehicles
Dressings
Nonocclusive dressings
Occlusive dressings
Categories and Indications
Cleansing agents
Moisturizing agents
Drying agents
Anti-inflammatory agents
Antimicrobials
Keratolytics
Astringents
Antipruritics
Acne and Related Disorders
Acne Vulgaris
Pathophysiology
Etiology
Symptoms and Signs
Diagnosis
Prognosis
Treatment
Mild acne
Moderate acne
Severe acne
Other forms of acne
Scarring
Key Points
Perioral Dermatitis
Rosacea
Etiology
Symptoms and Signs
Diagnosis
Treatment
Key Points
Bullous Diseases
Introduction
Bullous Pemphigoid
Symptoms and Signs
Diagnosis
Prognosis
Treatment
Dermatitis Herpetiformis
Symptoms and Signs
Diagnosis
Treatment
Epidermolysis Bullosa Acquisita
Linear Immunoglobulin A Disease
Pemphigus Vulgaris
Symptoms and Signs
Diagnosis
Prognosis
Treatment
Pemphigus Foliaceus
Cornification Disorders
Calluses and Corns
Symptoms and Signs
Diagnosis
Treatment
Key Points
Ichthyosis
Inherited ichthyoses
Acquired ichthyosis
Treatment
Moisturization and keratolytics
Infection prophylaxis
Key Points
Xeroderma
Keratosis Pilaris
Dermatitis
Definition of Dermatitis
Atopic Dermatitis
Etiology
Pathophysiology
Symptoms and Signs
Complications
Diagnosis
Prognosis
Treatment
Supportive care
Avoidance of precipitating factors
Corticosteroids
Other therapies
Key Points
Contact Dermatitis
Pathophysiology
Irritant contact dermatitis (ICD)
Allergic contact dermatitis (ACD)
Symptoms and Signs
ICD
ACD
Diagnosis
Prognosis
Treatment
Key Points
Exfoliative Dermatitis
Symptoms and Signs
Diagnosis
Treatment
Hand and Foot Dermatitis
Dyshidrotic eczema (dyshidrotic dermatitis)
Keratolysis exfoliativa
Hyperkeratotic eczema
Id reaction
Housewives' eczema
Hand-foot syndrome
Lichen Simplex Chronicus
Etiology
Pathophysiology
Symptoms and Signs
Diagnosis
Treatment
Nummular Dermatitis
Symptoms and Signs
Diagnosis
Treatment
Seborrheic Dermatitis
Symptoms and Signs
Diagnosis
Treatment
Adults
Infants and children
Key Points
Stasis Dermatitis
Symptoms and Signs
Diagnosis
Treatment
Key Points
Reactions to Sunlight
Overview of Effects of Sunlight
Ultraviolet (UV) radiation
Pathophysiology
Prevention
Avoidance
Clothing
Sunscreens
Chronic Effects of Sunlight
Aging
Actinic keratoses
Skin cancers ()
Treatment
Actinic keratoses
Photosensitivity
Solar urticaria
Chemical photosensitivity
Polymorphous light eruption
Sunburn
Symptoms and Signs
Treatment
Prevention
Psoriasis and Scaling Diseases
Introduction
Psoriasis
Etiology
Symptoms and Signs
Diagnosis
Treatment
Topical treatments
Systemic treatments
Phototherapy
Choice of therapy
Key Points
Parapsoriasis
Pityriasis Rosea
Symptoms and Signs
Diagnosis
Treatment
Key Points
Pityriasis Rubra Pilaris
Pityriasis Lichenoides
Lichen Planus
Etiology
Symptoms and Signs
Diagnosis
Prognosis
Treatment
Local treatments
Systemic treatments and phototherapy
Oral lichen planus
Key Points
Lichen Sclerosus
Treatment
Hypersensitivity and Inflammatory Disorders
Introduction
Acute Febrile Neutrophilic Dermatosis
Etiology
Symptoms and Signs
Diagnosis
Treatment
Drug Eruptions and Reactions
Symptoms and Signs
Diagnosis
Treatment
Erythema Multiforme
Etiology
Symptoms and Signs
Diagnosis
Treatment
Panniculitis
Etiology
Symptoms and Signs
Diagnosis
Treatment
Erythema Nodosum
Etiology
Symptoms and Signs
Diagnosis
Treatment
Granuloma Annulare
Etiology
Symptoms and Signs
Diagnosis
Treatment
Pyoderma Gangrenosum
Etiology
Pathophysiology
Symptoms and Signs
Diagnosis
Treatment
Stevens-Johnson Syndrome (SJS) and Toxic Epidermal Necrolysis (TEN)
Etiology
Pathophysiology
Symptoms and Signs
Diagnosis
Prognosis
Treatment
Sweating Disorders
Introduction
Bromhidrosis
Hyperhidrosis
Etiology
Focal sweating
Generalized sweating
Symptoms and Signs
Diagnosis
Treatment
Key Points
Hypohidrosis
Miliaria
Bacterial Skin Infections
Overview of Bacterial Skin Infections
Cellulitis
Etiology
Symptoms and Signs
Diagnosis
Prognosis
Treatment
Erysipelas
Diagnosis
Treatment
Cutaneous Abscess
Symptoms and Signs
Diagnosis
Treatment
Folliculitis
Treatment
Furuncles and Carbuncles
Diagnosis
Treatment
Erythrasma
Hidradenitis Suppurativa
Diagnosis
Treatment
Impetigo and Ecthyma
Symptoms and Signs
Diagnosis
Treatment
Lymphadenitis
Symptoms and Signs
Diagnosis
Treatment
Lymphangitis
Necrotizing Subcutaneous Infection
Etiology
Pathophysiology
Symptoms and Signs
Diagnosis
Prognosis
Treatment
Staphylococcal Scalded Skin Syndrome
Symptoms and Signs
Diagnosis
Differential diagnosis
Treatment
Fungal Skin Infections
Candidiasis (Mucocutaneous)
Etiology
Symptoms and Signs
Diagnosis
Treatment
Key Points
Overview of Dermatophytoses
Symptoms and Signs
Diagnosis
Treatment
Tinea Barbae
Tinea Capitis
Kerion
Diagnosis
Treatment
Key Points
Tinea Corporis
Diagnosis
Treatment
Tinea Cruris
Diagnosis
Treatment
Tinea Pedis
Diagnosis
Treatment
Dermatophytid Reaction
Intertrigo
Tinea Versicolor
Symptoms and Signs
Diagnosis
Treatment
Key Points
Parasitic Skin Infections
Introduction
Cutaneous Larva Migrans
Cutaneous Myiasis
Furuncular myiasis
Wound myiasis
Migratory myiasis
Delusional Parasitosis
Lice
Head lice
Body lice
Pubic lice
Key Points
Scabies
Etiology
Symptoms and Signs
Classic scabies
Other forms
Diagnosis
Treatment
Key Points
Viral Skin Diseases
Introduction
Molluscum Contagiosum
Symptoms and Signs
Diagnosis
Treatment
Key Points
Warts
Etiology
Symptoms and Signs
Common warts
Filiform warts
Flat warts
Palmar and plantar warts
Mosaic warts
Periungual warts
Genital warts
Diagnosis
Prognosis
Treatment
Common warts
Filiform warts
Flat warts
Plantar warts
Periungual warts
Recalcitrant warts
Key Points
Zoonotic Diseases
Contagious ecthyma
Milker's nodules
Pigmentation Disorders
Overview of Pigmentation Disorders
Albinism
Pathophysiology
Symptoms and Signs
Diagnosis
Treatment
Key Points
Vitiligo
Etiology
Symptoms and Signs
Diagnosis
Treatment
Key Points
Hyperpigmentation
Melasma (chloasma)
Lentigines
Drug-induced hyperpigmentation
Key Points
Hair Disorders
Introduction
Alopecia
Pathophysiology
Growth cycle
Classification
Etiology
Evaluation
History
Physical examination
Red flags
Interpretation of findings
Testing
Treatment
Androgenetic alopecia
Hair loss due to other causes
Key Points
Alopecia Areata
Diagnosis
Treatment
Hirsutism
Pathophysiology
Etiology
Androgen excess
No androgen excess
Evaluation
History
Physical examination
Red flags
Interpretation of findings
Testing
Imaging
Treatment
Hair removal
Hormonal treatment
Key Points
Pseudofolliculitis Barbae
Treatment
Nail Disorders
Overview of Nail Disorders
Nail Deformities
Congenital deformities
Deformities associated with systemic problems
Deformities associated with dermatologic conditions
Discoloration
Melanonychia striata
Onychogryphosis
Onycholysis
Onychotillomania
Pincer nail deformity
Subungual hematoma and nail bed trauma
Trachyonychia
Tumors
Onychomycosis
Symptoms and Signs
Diagnosis
Treatment
Paronychia
Symptoms and Signs
Diagnosis
Treatment
Chronic Paronychia
Treatment
Ingrown Toenail
Symptoms and Signs
Diagnosis
Treatment
Pressure Ulcers
Pressure Ulcers
Etiology
Pathophysiology
Symptoms and Signs
Staging systems
Complications
Diagnosis
Prognosis
Treatment
Pressure reduction
Direct ulcer care
Management of pain
Control of infection
Assessment of nutritional needs
Adjunctive therapy
Surgery
Prevention
Key Points
Benign Skin Tumors
Introduction
Dermatofibroma
Epidermal Cysts
Treatment
Keloids
Treatment
Keratoacanthoma
Lipomas
Diagnosis
Treatment
Moles
Diagnosis
Treatment
Atypical Moles
Symptoms and Signs
Diagnosis
Treatment
Prevention
Seborrheic Keratoses
Skin Tags
Vascular Lesions of the Skin
Infantile Hemangioma
Symptoms and Signs
Diagnosis
Treatment
Nevus Flammeus and Port-Wine Stain
Nevus Araneus
Pyogenic Granuloma
Lymphatic Malformations
Cancers of the Skin
Overview of Skin Cancer
Screening
Prevention
Basal Cell Carcinoma
Symptoms and Signs
Diagnosis
Treatment
Bowen's Disease
Squamous Cell Carcinoma
Diagnosis
Prognosis
Treatment
Melanoma
Etiology
Classification
Lentigo maligna melanoma
Superficial spreading melanoma
Nodular melanoma
Acral-lentiginous melanoma
Diagnosis
Staging
Prognosis
Treatment
Metastatic disease
Kaposi's Sarcoma
Classification
Classic KS
AIDS-associated (epidemic) KS
Endemic KS
Iatrogenic (immunosuppressive) KS
Symptoms and Signs
Diagnosis
Treatment
Paget's Disease of the Nipple
Diagnosis
Treatment
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