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ContentsSynopsisCodesLook ForDiagnostic PearlsDifferential Diagnosis & PitfallsBest TestsManagement PearlsTherapyDrug Reaction DataReferencesView all Images (44)
Erythroderma in Adult
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Erythroderma in Adult

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Contributors: Susan Burgin MD
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Erythroderma (also known as exfoliative dermatitis) is typically defined as diffuse redness of the skin affecting more than 90% of the body surface.

The more common causes of erythroderma in adults are psoriasis, atopic dermatitis, mycosis fungoides, pityriasis rubra pilaris, and drugs. A number of medications have been reported to cause an exfoliative dermatitis, including but not limited to the following: allopurinol, antibiotics, antiepileptics, calcium channel blockers, opiates, gold, isoniazid, retinoids, lithium, phenothiazine, quinidine, thalidomide, and thiazides. (See also Drug Reaction Data, below.)

Rarer causes of erythroderma include seborrheic dermatitis, contact dermatitis, lichen planus, dermatomyositis, tinea corporis, actinic reticuloid, stasis dermatitis with autoeczematization, crusted scabies, inherited ichthyoses, and blistering diseases such as pemphigus foliaceus and bullous pemphigoid. Systemic diseases have also been associated with erythroderma, including systemic lymphoma and solid organ malignancies, as well as human immunodeficiency virus (HIV) disease. Around one-third of all erythroderma cases are idiopathic.

Sézary syndrome is a leukemic form of mycosis fungoides in which circulating atypical lymphocytes in the presence of erythroderma form mycosis fungoides.  

Erythroderma may develop acutely over days, such as when there is a drug cause, or more slowly over weeks or months, such as in a severe dermatitis or psoriasis. The majority of the skin surface is red, scaly, and usually very pruritic. Systemic manifestations include peripheral edema, which is usually pedal, pretibial, or facial. Increased blood flow and increased fluid loss through the skin can lead to tachycardia and the possibility of developing high-output cardiac failure. The risk of this is higher in acute cases. There are also thermoregulatory imbalances, which produce hyperthermia more frequently, but also hypothermia. Generalized lymphadenopathy is the most common noncutaneous manifestation of drug-induced erythroderma and is seen in approximately half of all patients.

Red Man Syndrome
This is a drug reaction typically caused by parenteral vancomycin. It has also been observed following intraperitoneal and oral use. Signs appear about 5-10 minutes after the start of the rapidly given infusion. The patient complains of generalized burning and itching, and an erythema spreads to involve the face, neck, and upper body. Other symptoms include chills, fever, dizziness, paresthesia around the mouth, chest pain, and dyspnea. There is significant hypotension. The reaction to vancomycin is due to an anaphylactic response mediated by IgE. The erythema usually subsides several hours after completion of treatment. Unlike other erythrodermic drug reactions, exfoliation is usually not present. The most severe reactions occur in patients aged younger than 40, especially children. Treatment with antihistamines relieves the symptoms, and giving hydroxyzine before the start of a vancomycin infusion lessens the erythema and pruritus.

Pediatric Patient Considerations
While adults are most commonly affected, erythroderma may rarely be seen in neonates and infants. Here, besides atopic dermatitis, psoriasis, and drug eruptions, rare inherited diseases are responsible, such as Leiner disease, Omenn disease (severe combined immune deficiency, erythroderma, lymphadenopathy, high IgE levels), Netherton syndrome, bullous congenital ichthyosiform erythroderma, non-bullous ichthyosiform erythroderma, and other inherited ichthyoses (eg, X-linked, lamellar; see also harlequin ichthyosis).


L26 – Exfoliative dermatitis
L27.0 –  Generalized skin eruption due to drugs and medicaments taken internally

238992001 – Drug-induced erythroderma
45454 – Erythroderma

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Drug Reaction Data

Below is a list of drugs with literature evidence indicating an adverse association with this diagnosis. The list is continually updated through ongoing research and new medication approvals. Click on Citations to sort by number of citations or click on Medication to sort the medications alphabetically.

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Last Reviewed: 01/10/2018
Last Updated: 06/15/2018
Copyright © 2018 VisualDx®. All rights reserved.
Erythroderma in Adult
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Erythroderma : Desquamation, Erythema, Erythroderma, Scaly plaque, Widespread, Pruritus
Clinical image of Erythroderma
Exanthematous drug reaction displaying widespread erythema over the trunk and arms with superadded crusting around the neck and in axillae.
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