Atopic Dermatitis

Aka: Atopic Dermatitis, Eczematous Dermatitis, Atopic Eczema, Eczema

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II. Epidemiology

  1. Inherited sensitive skin (Atopic Patient)
  2. Incidence
    1. Affects 11-12% of children in U.S. and 5-7% of adults
    2. Affects 17.8 Million people in U.S.
    3. Most cases go undiagnosed
  3. Onset
    1. Typically presents with first 2 years of life (most often within first 6 months)
    2. Diagnosed in first 5 years in 90% of patients
    3. Many cases remit by age 3-5 years

III. Pathophysiology

  1. Disrupted Epidermis due to underlying filaggrin Protein defect
    1. Filaggrin Gene (FLG) Defect
  2. Allows for Dermis immune cell exposure to environmental Antigens
    1. IgE Antibody response
    2. Increased T-helper 2 subtype activity (stimulate by Interleukin 4 and 13)
    3. Antigen-specific T-Cells secrete IgE binding factors
  3. Leads to inflammatory response
    1. Intense itching ensues due to a low itch threshold to provocative factors
    2. Scratching leads to further inflammation, resulting in a spiraling itch-scratch cycle

IV. Types

  1. Acute Atopic Dermatitis
    1. Weeping, crusting lesions with overlying Vesicles
  2. Subacute Atopic Dermatitis
    1. Dry, Scaling, erythematous Papules and Plaques or
    2. Pityriasis Alba
  3. Chronic Atopic Dermatitis
    1. Lichenification (e.g. Lichen Simplex Chronicus)

V. Associated Conditions: Atopic Triad (Family History)

  1. Eczematous Dermatitis (Atopic Dermatitis)
  2. Allergic Rhinitis
  3. Asthma
    1. Lifetime asthma Prevalence in patients with Atopic Dermatitis: 30%

VI. Provocative Factors

  1. Sweating
  2. Bacterial colonization
  3. Rough clothing
  4. Chemical irritants
  5. Emotional Stress
  6. Foods
    1. Cow's milk
    2. Wheat
    3. Eggs
    4. Soy
    5. Peanut and tree nuts
    6. Fish
  7. Environment
    1. Dust or mold
    2. Cat dander
    3. Temperature changes
    4. Low humidity

VII. Symptoms: Pruritus

  1. Described as "The itch that rashes" (when scratched)

VIII. Signs: Infants and young children

  1. Dermatitis characteristics
    1. Erythema and Edema
    2. Exudate
    3. Crusting
    4. Scaling
  2. Dermatitis Location
    1. Face (especially cheeks, hairline and behind ears)
    2. Scalp
    3. Trunk
    4. Extensor surface of arms and legs

IX. Signs: Older children and adults

  1. Dermatitis characteristics
    1. Similar Eczematous skin changes as with infants
    2. "Hot and sweaty fossa and folds"
    3. Excoriated lesions (pruritic)
  2. Dermatitis Location
    1. Flexor wrists and ankles
    2. Antecubital fossa
    3. Popliteal fossa
    4. Hands
    5. Upper Eyelid Inflammation (erythema, fine scale and lichenification)
    6. Anogenital area

X. Diagnosis: American Academy of Dermatology Criteria

  1. Major Criteria (all required)
    1. Chronic or relapsing history
    2. Eczema
    3. Pruritus
    4. Age-specific patterns
      1. Infants: Face, neck and extensor surfaces
      2. Children: Flexor surface involvement
      3. Axillary region and groin spared
  2. Common Additional Findings (optional, but often observed in atopic)
    1. Atopy History (or Family History)
    2. Onset at early age
    3. IgE Reactivity
    4. Xerosis
  3. Non-specific Other Findings
    1. Ocular or periorbital changes
    2. Vascular findings
      1. Facial pallor
      2. Dermatographism
    3. Dry Skin findings
      1. Keratosis Pilaris
      2. Pityriasis Alba
      3. Ichthyosis
      4. Hyperlinear palms
    4. Sequelae of scratching
      1. Lichenification (e.g. Lichen Simplex Chronicus)
      2. Prurigo Nodularis
      3. Perifollicular accentuation
  4. References
    1. Eichenfield (2014) J Am Acad Dermatol 70(2): 338-51 [PubMed]

XI. Diagnosis: Diagnostic Tool

  1. Pruritus (Required) and
  2. Additional Criteria (3 or more of the following)
    1. Asthma or Allergic Rhinitis history
    2. Flexor fold involvement
    3. Flexor fold dermatitis visible on exam
    4. Generalized Dry Skin
    5. Onset of rash before age 2 years
  3. Efficacy
    1. Test Sensitivity: 95%
    2. Test Specificity: 97%
  4. References
    1. Brenninkmeijer (2008) Br J Dermatol 158(4): 754-65 [PubMed]

XII. Differential Diagnosis: Varied Atopic Dermatitis presentations present a broad differential

  1. See Eczematous Skin Lesion
  2. See Pruritus
  3. Any age
    1. Contact Dermatitis
    2. Scabies
    3. Seborrheic Dermatitis
    4. Xerosis
    5. Urticaria
  4. Children
    1. Impetigo
    2. Molluscum Contagiosum
    3. Tinea Corporis
    4. Viral Exanthem
    5. Candidiasis
  5. Older Adults
    1. Cutaneous T-Cell Lymphoma (older adults)
    2. Dermatitis Herpetiformis
    3. Nummular Eczema
    4. Psoriasis
  6. References
    1. Leung (2003) Lancet 361(9352): 151-60 [PubMed]

XIII. Complications (associated with intense scratching)

  1. Secondary infection
    1. Impetigo
    2. Cellulitis
    3. Eczema herpeticum (Kaposi varicelliform eruption)
      1. Painful papulovesicular rash spread over localized skin region
      2. Skin infected by Herpes Simplex Virus infection
  2. Direct scratching complications
    1. Lichen Simplex Chronicus
    2. Prurigo Nodularis
  3. Infections (more common in atopy)
    1. Otitis Media
    2. Streptococcal Pharyngitis
    3. Urinary Tract Infections

XIV. Management: Dermatology referral indications

  1. Diagnosis uncertain
  2. Pruritus and other symptoms refractory to treatment (especially if impacting sleep, school or work attendance)
  3. Facial Eczematous Dermatitis refractory to treatment
  4. Severe Atopic Dermatitis
  5. Frequent exacerbations of Eczematous Dermatitis
  6. Severe or recurrent Skin Infections
  7. Systemic medications (Immunosuppressive Agents) required for maintenance or frequent exacerbations
  8. Allergic Contact Dermatitis (consider on face, Eyelids and hands)
  9. Allergen specific Immunotherapy considered (IgE >150 IU/ml)

XV. Management: General Measures

  1. Chronic disease management
  2. Key primary measures
    1. See Pruritus Management
    2. See Dry Skin Management
      1. Includes Frequent skin Emollient use is paramount
    3. Allergan avoidance (limit to products free of perfume and clear of dye)
    4. Eliminate Environmental Allergens
  3. Atopic Dermatitis action plan (similar to Asthma Action Plan)
    1. Everyday Management (green zone)
      1. See Dry Skin Management
      2. Skin Lubricants (clear and free Emollients such as eucerin, vanicream, lubriderm) applied daily
      3. Bathing
        1. Take a daily, 5-10 min bath or shower with lukewarm water, soap-free cleanser (e.g. cetaphil)
        2. Pat dry after bathing and apply Skin Lubricant within 3 minutes
    2. Flare-Up Management (yellow zone)
      1. Continue green zone management
      2. Apply Topical Corticosteroid to affected areas twice daily
      3. Apply topical Calcineurin Inhibitor (e.g. Tacrolimus) to affected areas twice daily
    3. Severe Flare-Up, Infection or other complication (red zone)
      1. Continue green zone and yellow zone management
      2. Contact medical provider
  4. Infection Control
    1. Keep Fingernails short and clean
    2. Staphylococcus Aureus colonization in 90% of Eczema
    3. Treat superinfection (Impetigo) as needed
    4. Consider intranasal Bactroban to reduce seeding
    5. Consider twice weekly dilute bleach bath
      1. Indicated in moderate to severe Eczema (NNT 10 to improve symptoms within 4 weeks)
      2. Not effective in mild Eczema
      3. Use 1/2 cup regular bleach (6%) in 40 gallons of water (half full standard bathtub)
  5. Feeding Changes (Very controversial and NOT recommended)
    1. Food allergan testing is associated with high False Positive Rates and unnecessary restrictive diets
    2. Common Antigens related to Eczema
      1. Milk, Soy, Egg, Peanut, Wheat
    3. Uncertain whether diet changes improve Eczema
    4. Consider eliminating for 1 month above Antigens
      1. Consider starting with cow's milk elimination
      2. Consider Soy-based formula if persists
      3. Consider formal Allergy Testing

XVI. Management: Topical Corticosteroids for Exacerbation

  1. Consider instead of or in combination with alternative agents (e.g. Tacrolimus Ointment)
  2. General
    1. Limited use only for exacerbations
    2. Avoid Under-treatment
    3. Consider applying only at night (but typically applied twice daily)
    4. Start early for exacerbations
    5. Treat all palpable areas
    6. Medium potency Corticosteroids appear as effective as low potency Corticosteroids with fewer adverse effects
      1. However, medium and high potency steroids are more effective than low potency steroids
      2. Lax (2022) Cochrane Database Syst Rev (3): CD013356 [PubMed]
    7. Ointments are preferred
      1. Better tolerated (less burning)
      2. Allergic Reaction to ointment base less common
      3. Helps moisten very Dry Skin
  3. Mild Exacerbation
    1. Use for 3-4 days only
    2. Low potency Topical Steroid (e.g. Hydrocortisone 2.5% or Desonide 0.05%)
  4. Moderate Exacerbation
    1. Taper over 2 weeks
      1. Use twice daily for 7 days, then
      2. Use once daily for 7 days
    2. For Face and Groin
      1. Limit to Level 5 Topical Corticosteroid or less
      2. Hydrocortisone (0.5%, 1%, 2.5%)
    3. For Eyelid
      1. Tridesilon 0.05% or Aclovate 0.05% ointment or cream applied twice daily for 5-10 days
      2. Consider Tacrolimus 0.1% ointment or Pimecrolimus 1% cream for refractory cases
        1. Risk of malignancy with longterm use (see below)
    4. For body (medium potency)
      1. Hydrocortisone valerate 0.2% (Westcort)
      2. Triamcinolone Acetonide 0.1% (Kenalog)
  5. Severe Exacerbation
    1. High Potency Topical Steroids for no more than 4 weeks (and not on face, groin, skin folds)
      1. Fluocinonide 0.05% (Lidex)
      2. Amcinonide 0.1% (Cyclocort)
    2. Try to avoid Systemic Corticosteroids
    3. Consider maintenance Topical Steroid
      1. Low potency Topical Steroid daily or
      2. Medium to High potency steroid twice weekly (e.g. weekend only)
        1. Berth-Jones (2003) BMJ 326:1367-70 [PubMed]

XVII. Management: Refractory to Corticosteroids

  1. Anti-infective agents for Impetigo or other skin superinfection
    1. See Dilute bleach baths as above
    2. Indicated only in active Skin Infection
    3. Staphylococcus Aureus coverage
      1. Augmentin
      2. Cephalexin (Keflex)
      3. Erythromycin
      4. Dicloxacillin
    4. Herpes Simplex Virus (HSV) coverage if suspected (see Eczema herpeticum under complications)
      1. Acyclovir
      2. Famciclovir
      3. Valacyclovir
  2. Systemic Corticosteroids
    1. Indicated
      1. Severe Eczema exacerbations
      2. Refractory to high potency Topical Steroid
    2. Precautions
      1. Most guidelines recommend avoiding Systemic Corticosteroids if at all possible
      2. Limit use to 1-2 weeks
      3. Works too well (Derails Topical Steroid treatment)
  3. Calcineurin Inhibitors (topical)
    1. Highly effective agents applied daily
    2. Risk of Skin Malignancy or Lymphoma with prolonged use (FDA black box warning)
    3. Tacrolimus Ointment (Protopic)
      1. Tacrolimus 1% is approved for adults only, and is as effective as potent Topical Corticosteroids
      2. Tacrolimus 0.03% is approved for age 2 years old and older
    4. Pimecrolimus Cream (Elidel)
      1. Weaker, but may be better tolerated than the Tacrolimus Ointment
      2. Pimecrolimus 1% cream is approved for age 2 years and older
  4. Miscellaneous agents
    1. Ultraviolet Phototherapy
      1. Narrow Band UV B Phototherapy
      2. PUVA has also been used
      3. Indicated in widespread refractory Atopic Dermatitis
    2. Leukotriene Receptor Antagonist
      1. Zafirlukast (Accolate) 20 mg orally twice daily

XVIII. Management: Biologic Agents and Other Specialty Prescribed Agents

  1. Monoclonal Antibodies
    1. General
      1. Antiinflammatory, injectable monoclonal antibodies self-administered every other week
      2. Unlike other Biologic Agents, does not increase serious infection risk or require lab monitoring
      3. Risk of Corneal Inflammation or Conjunctivitis (return for Eye Pain or Vision change)
    2. Dupilumab (Dupixent)
      1. Injectable Monoclonal Antibody for age >6 years in refractory Eczema (also Asthma, Nasal Polyps)
        1. Approved in 2022 for age >6 months with severe Eczema
      2. Effective, but very expensive ($3000/month)
      3. Longest track record for Monoclonal Antibody use in Eczema
      4. Ariens (2018) Ther Adv Chronic Dis 9(9): 159-70 [PubMed]
    3. Tralokinumab (Adbry)
      1. Antiinflammatory, injectable Monoclonal Antibody similar to Dupilumab (Dupixent)
      2. Only approved for use in adults
      3. Costs $3300/month in 2022
    4. References
      1. (2022) Presc Lett 29(3): 18
  2. Janus Kinase Inhibitor (JAK Inhibitor)
    1. General
      1. JAK Inhibitors suppress Cytokines and reduce inflammation and Pruritus
      2. Requires laboratory monitoring including Serum Creatinine
      3. Associated with serious adverse effects (cancer risk, venous thrombosis) and carries FDA boxed warning
      4. Drug Interactions
    2. Ruxolitinib (Opzelura)
      1. Topical JAK Inhibitor
      2. FDA approved for mild to moderate Eczema
        1. Limit to third-line therapy when refractory to other measures
      3. Preparations: 1.5% cream ($2000 per 60 grams in 2021)
      4. Risk of Shingles, serious infections and Nonmelanoma Skin Cancer
        1. Systemic JAK Inhibitors also risk cancer and thrombosis (10% of Opzelura is absorbed)
    3. Abrocitinib (Cibingo)
      1. Oral JAK Inhibitor indicated for adults with Eczema
      2. Cost $4900/month in U.S. 2022
    4. Upadacitinib (Rinvoq)
      1. Oral JAK Inhibitor indicated for age >12 years with Eczema
      2. Cost $5700/month in U.S. 2022
  3. Topical Phosphodiesterase 4 Inhibitor
    1. Crisaborole Ointment (Eucrisa)
      1. Phosphodiesterase 4 Inhibitor
      2. Adjunct to moderate Eczema refractory to Corticosteroids for age >2 years old
      3. Apply in thin layer twice daily
      4. Expensive ($700/month)
      5. Paller (2016) J Am Acad Dermatol 75(3):494-503 +PMID: 27417017 [PubMed]
  4. Other Immunosuppressants and Antiinflammatory Agents (Topical and systemic agents)
    1. Cyclosporine (Sandimmune)
    2. Azathioprine (Imuran)
    3. Methotrexate
    4. Hydroxyquinolone
    5. Tar Preparations

XIX. References

  1. (2022) Presc Lett 29(3): 18
  2. Claudius and Behar in Herbert (2020) EM:Rap 20(8): 5-7
  3. Kaplan (2001) CMEA Medicine Lecture, San Diego
  4. Berke (2012) Am Fam Physician 86(1): 35-42 [PubMed]
  5. Burks (1998) J Pediatr 132(1): 132-6 [PubMed]
  6. Chu (2024) Ann Allergy Asthma Immunol 132(3): 274-312 [PubMed]
  7. Drake (1995) Arch Dermatol 131:1403-8 [PubMed]
  8. Frazier (2020) Am Fam Physician 101(10): 590-8 [PubMed]
  9. Krakowski (2008) Pediatrics 122(4): 812-24 [PubMed]
  10. Reitamo (2000) Arch Dermatol 136:999-1006 [PubMed]

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Related Studies

Ontology: Dermatitis, Atopic (C0011615)

Definition (MSH) A chronic inflammatory genetically determined disease of the skin marked by increased ability to form reagin (IgE), with increased susceptibility to allergic rhinitis and asthma, and hereditary disposition to a lowered threshold for pruritus. It is manifested by lichenification, excoriation, and crusting, mainly on the flexural surfaces of the elbow and knee. In infants it is known as infantile eczema.
Definition (CSP) chronic inflammatory skin disorder in individuals with a hereditary predisposition to a lowered threshold to pruritus; characterized by extreme itching, leading to scratching and rubbing that result in typical lesions of eczema.
Concepts Disease or Syndrome (T047)
MSH D003876
ICD10 L20 , L20.9, L20.81
SnomedCT 200772001, 200779005, 156331003, 311411000009101, 24079001, 200775004
English Atopic Dermatitides, Atopic Eczema, Atopic Neurodermatitides, Atopic Neurodermatitis, Dermatitides, Atopic, Disseminated Neurodermatitides, Disseminated Neurodermatitis, Eczema, Atopic, Neurodermatitides, Atopic, Neurodermatitides, Disseminated, Neurodermatitis, Atopic, Neurodermatitis, Disseminated, DERMATITIS ALLERGIC, DERMATITIS ATOPIC, Dermatitis allergic, ECZEMA ALLERGIC, ECZEMA ATOPIC, Eczema allergic, Atopic dermatitis NOS, Atopic dermatitis, unspecified, allergic eczema, ECZEMA, ATOPIC, ATOD, DERMATITIS, ATOPIC, atopic eczematous dermatitis (diagnosis), neurodermatitis atopic, atopic neurodermatitis, atopic eczematous dermatitis, atopic neurodermatitis (diagnosis), Dermatitis atopic, Eczema atopic, Dermatitis, Atopic, Dermatitis, Atopic [Disease/Finding], atopic dermatitis, Dermatitis;allergic, Dermatitis;atopic, Eczema;atopic, besnier's prurigo, Atopic Dermatitis, Allergic (intrinsic) eczema (disorder), Atopic dermatitis NOS (disorder), Allergic dermatitis (disorder), Allergic eczema, Atopic dermatitis, Allergic dermatitis, Atopic eczema, Atopic neurodermatitis, Disseminated neurodermatitis, AD - Atopic dermatitis, Atopic dermatitis (disorder), Atopic neurodermatitis (disorder), atopic; eczema, atopic; neurodermatitis, dermatitis; allergic, dermatitis; allergy, disseminated; neurodermatitis, eczema; allergic, eczema; allergy, eczema; atopic, neurodermatitis; atopic, neurodermatitis; disseminated, allergic; dermatitis, allergic; eczema, allergy; dermatitis, allergy; eczema, Atopic dermatitis, NOS, Canine atopy, Eczema, atopic, Neurodermatitis, atopic, Eczema, allergic, atopic eczema, allergic dermatitis
Portuguese DERMATITE ATOPICA, ECZEMA ATOPICO, Eczema alérgico, Eczema atópico, DERMATITE ALERGICA, ECZEMA ALERGICO, Dermatite alérgica, Dermatite atópica, Dermatite Atópica, Eczema Atópico, Neurodermite Atópica, Neurodermite Disseminada
Spanish DERMATITIS ATOPICA, ECCEMA ATOPICO, Eczema alérgico, Eczema atópico, DERMATITIS ALERGICA, ECCEMA ALERGICO, dermatitis atópica, SAI (trastorno), dermatitis atópica, SAI, dermatitis alérgica, dermatitis atópica (trastorno), dermatitis atópica, eccema alérgico, eccema atópico, eczema alérgico, eczema atópico, neurodermatitis atópica (trastorno), neurodermatitis atópica, neurodermatitis diseminada, Dermatitis alérgica, Dermatitis atópica, Dermatitis Atópica, Eccema Atópico, Neurodermatitis Atópica, Neurodermatitis Diseminada
Italian Dermatite allergica, Eczema allergico, Neurodermatite atopica, Eczema atopico, Neurodermatite diffusa, Dermatite atopica
Dutch eczeem allergisch, allergische dermatitis, eczeem atopisch, allergisch eczeem, atopisch eczeem, allergie; dermatitis, allergie; eczeem, allergisch; dermatitis, allergisch; eczeem, atopisch; eczeem, atopisch; neurodermatitis, dermatitis; allergie, dermatitis; allergisch, eczeem; allergie, eczeem; allergisch, eczeem; atopisch, gedissemineerd; neurodermatitis, neurodermatitis; atopisch, neurodermatitis; gedissemineerd, Atopisch eczeem, niet gespecificeerd, atopische dermatitis, dermatitis allergisch, Atopisch eczeem, Constitutioneel eczeem, Atopische dermatitis, Dermatitis, atopische, Eczeem, atopisch, Eczeem, constitutioneel, Neurodermatitis, atopische, Neurodermatitis, gedissemineerde
French Eczéma allergique, Dermite allergique, Dermite atopique, DERMITE ALLERGIQUE, DERMITE ATOPIQUE, ECZEMA ALLERGIQUE, ECZEMA ATOPIQUE, Eczéma atopique, Eczéma constitutionnel, Dermatite allergique, Dermatite atopique
German Ekzem atopisch, atopisches Ekzem, Ekzem allergisch, atopische Dermatitis, allergisches Ekzem, allergische Dermatitis, Atopisches [endogenes] Ekzem, nicht naeher bezeichnet, Atopisches [endogenes] Ekzem, DERMATITIS ALLERGISCH, DERMATITIS ATOPISCH, EKZEM ALLERGISCH, EKZEM ATOPISCH, Dermatitis allergisch, Dermetitis atopisch, Dermatitis, atopische, Ekzem, atopisches, Neurodermatitis, atopische, Neurodermatitis, disseminierte
Japanese アレルギー性皮膚炎, アレルギー性湿疹, ｱﾚﾙｷﾞｰｾｲｼｯｼﾝ, ｱﾄﾋﾟｰｾｲﾋﾌｴﾝ, ｱﾚﾙｷﾞｰｾｲﾋﾌｴﾝ, ｱﾄﾋﾟｰｾｲｼｯｼﾝ, アトピー性湿疹, アトピー性神経皮膚炎, 神経皮膚炎-アトピー性, 神経皮膚炎-汎発性, 内因性湿疹, 痒疹-Besnier, 痒疹-ベニエー, アトピー性皮膚炎, ベニエー痒疹, 播種性神経皮膚炎, 汎発性神経皮膚炎, 湿疹-アトピー性, アトピー皮膚炎, 小児湿疹, 皮膚炎-汎発性神経, 湿疹-小児, Besnier痒疹, 皮膚炎-アトピー性
Swedish Hudinflammation, atopisk
Czech ekzém atopický, Alergický ekzém, Atopická dermatitida, Alergická dermatitida, Atopický ekzém, atopický ekzém, atopická dermatitida, atopická neurodermatitida, dermatitida atopická
Finnish Atooppinen ihottuma
Russian DERMATIT ATOPICHESKII, EKZEMA DETSKAIA, NEIRODERMIT ATOPICHESKII, NEIRODERMIT DIFFUZNYI, EKZEMA ATOPICHESKAIA, NEIRODERMIT KONSTITUTSIONAL'NYI, BENVE-BROKA SINDROM, БЕНВЕ-БРОКА СИНДРОМ, ДЕРМАТИТ АТОПИЧЕСКИЙ, НЕЙРОДЕРМИТ АТОПИЧЕСКИЙ, НЕЙРОДЕРМИТ ДИФФУЗНЫЙ, НЕЙРОДЕРМИТ КОНСТИТУЦИОНАЛЬНЫЙ, ЭКЗЕМА АТОПИЧЕСКАЯ, ЭКЗЕМА ДЕТСКАЯ
Korean 아토피 피부염, 상세불명의 아토피 피부염
Polish Zapalenie skóry atopowe, Atopowe zapalenie skóry, AZS
Hungarian Allergiás dermatitis, Eczema allergiás, Allergiás bőrgyulladás, Atopiás dermatitis, Allergiás ekzema, Atópiás dermatitisz, Atopiás ekcéma, Eczema atopiás
Croatian DERMATITIS, ATOPIČNI, DERMATITIS, ATOPIJSKI, ATOPIJSKI DERMATITIS, NEURODERMITIS
Norwegian Atopisk eksem, Atopisk nevrodermatitt, Disseminert nevrodermatitt, Atopisk dermatitt
Derived from the NIH UMLS (Unified Medical Language System)

Ontology: Eczema (C0013595)

Definition (CHV) a type of skin inflammation
Definition (CHV) a type of skin inflammation
Definition (CHV) a type of skin inflammation
Definition (CHV) a type of skin inflammation
Definition (CHV) a type of skin inflammation
Definition (CHV) a type of skin inflammation
Definition (MEDLINEPLUS)

Eczema is a term for several different types of skin swelling. Eczema is also called dermatitis. It is not dangerous, but most types cause red, swollen and itchy skin. Factors that can cause eczema include other diseases, irritating substances, allergies and your genetic makeup. Eczema is not contagious.

The most common type of eczema is atopic dermatitis. It is an allergic condition that makes your skin dry and itchy. It is most common in babies and children.

Eczema is a chronic disease. You can prevent some types of eczema by avoiding irritants, stress, and the things you are allergic to.
Definition (NCI) A form of dermatitis characterized by red, itchy, scaly, or crusty patches that can be chronic or intermittent.(NICHD)
Definition (NCI_NCI-GLOSS) A group of conditions in which the skin becomes inflamed, forms blisters, and becomes crusty, thick, and scaly. Eczema causes burning and itching, and may occur over a long period of time. Atopic dermatitis is the most common type of eczema.
Definition (CSP) pruritic papulovesicular dermatitis occurring as a reaction to many endogenous and exogenous agents.
Definition (MSH) A pruritic papulovesicular dermatitis occurring as a reaction to many endogenous and exogenous agents (Dorland, 27th ed).
Concepts Disease or Syndrome (T047)
MSH D004485
ICD10 L30.9
SnomedCT 156358005, 200885007, 267797006, 156326000, 238538009, 267847004, 43116000, 281104002
English Dermatitis, Eczematous, Eczematous Dermatitides, Eczema, Eczemas, Dermatitides, Eczematous, DERMATITIS ECZEMATOID, ECZEMA, Eczema NOS, Eczematoid dermatitis, eczematous dermatitis, eczema, eczema (diagnosis), eczematoid dermatitis (diagnosis), eczematoid dermatitis, Dermatitis eczematoid, Eczematous dermatitis, Eczematous rash, Eczema [Disease/Finding], eczema nos, eczemas, eczematous rash, Eczema: [discoid] or [NOS], Eczema: [discoid] or [NOS] (disorder), Eczema NOS (disorder), Eczematous Dermatitis, Atopic Dermatitis, Unclassifiable eczema, Eczema (disorder), Unclassifiable eczema (disorder), dermatitis; eczematous, eczematous; dermatitis, Eczema, NOS, Eczematous dermatitis, NOS, Eczema [Ambiguous] (disorder)
French ECZEMA, Dermite eczémateuse, Rash eczémateux, Dermatite eczématoïde, Eczéma SAI, DERMITE ECZEMATIFORME, Eczéma, Dermatite eczémateuse
Portuguese ECZEMA, DERMATITE ECZEMATOSA, Erupção eczematosa, Eczema NE, Dermatite eczematosa, Dermatite eczematóide, Eczema, Dermatite Eczematosa
German EKZEM, Ekzem NNB, Dermatitis, ekzematoid, ekzematoese Dermatitis, ekzematoeseer Ausschlag, DERMATITIS EKZEMATOID, Dermatitis eczematosa, Ekzem
Spanish ECCEMA, Dermatitis eczematosa, Eczema NEOM, Erupción eczematosa, DERMATITIS ECCEMATOIDE, eccema, SAI, eccema, SAI (trastorno), Dermatitis Eczematosa, Eczema, dermatitis eccematosa, dermatitis eczematosa, eccema (trastorno), eccema no clasificable (trastorno), eccema no clasificable, eccema, eczema, Dermatitis Eccematosa, Eccema
Dutch eczemateuze rash, eczematoïde dermatitis, eczeem NAO, eczemateuze dermatitis, dermatitis; eczemateus, eczemateus; dermatitis, eczeem, Dermatitis eczematosa, Eczeem
Italian Dermatite eczematoide, Eczema NAS, Eruzione eczematosa, Dermatite eczematosa, Eczema
Japanese 湿疹性皮疹, 湿疹ＮＯＳ, ｼｯｼﾝ, ｼｯｼﾝNOS, ｼｯｼﾝﾖｳﾋﾌｴﾝ, ｼｯｼﾝｾｲﾋﾌｴﾝ, ｼｯｼﾝｾｲﾋｼﾝ, 湿疹, しっしん, 湿疹性皮膚炎, 湿疹様皮膚炎, 皮膚炎-湿疹性
Swedish Eksem
Czech ekzém, Ekzém NOS, Ekzémová dermatitida, Ekzematoidní dermatitida, Výsev ekzému, Ekzém, lišej
Finnish Ekseema
Russian EKZEMA, DERMATIT EKZEMATOZNYI, ДЕРМАТИТ ЭКЗЕМАТОЗНЫЙ, ЭКЗЕМА
Croatian EGZEM
Polish Wyprysk, Egzema
Hungarian Ekzemás kiütés, Eczema k.m.n., Dermatitis eczematoid, Ekcéma, Ekzemás dermatitis
Norwegian Eksem
Derived from the NIH UMLS (Unified Medical Language System)

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