Erythroderma (Generalized Exfoliative Dermatitis)
- Author: Sanusi H Umar, MD, FAAD; Chief Editor: Dirk M Elston, MD more...
Background
Exfoliative dermatitis (ED) is a definitive term that refers to a scaling erythematous dermatitis involving 90% or more of the cutaneous surface. Exfoliative dermatitis is characterized by erythema and scaling involving the skin's surface and often obscures the primary lesions that are important clues to understanding the evolution of the disease. Clinicians are challenged to find the cause of exfoliative dermatitis by eliciting the history of illness prior to erythema and scaling, by probing with biopsies, and by performing blood studies. See the images below.
Exfoliative dermatitis diffuse skin involvement.
Exfoliative dermatitis close-up view showing erythema and scaling. The term red man syndrome is reserved for idiopathic exfoliative dermatitis in which no primary cause can be found, despite serial examinations and tests. Idiopathic exfoliative dermatitis is characterized by marked palmoplantar keratoderma, dermatopathic lymphadenopathy, and a raised level of serum immunoglobulin E (IgE) and is more likely to persist than other types.
The term l'homme rouge refers to exfoliative dermatitis that is secondary to cutaneous T-cell lymphoma. The historic classification of exfoliative dermatitis into Wilson-Brocq (chronic process associated with exacerbation and remissions), Hebra or pityriasis rubra (relentlessly progressive disease), and Savill (self-limiting) types lacks any clinical significance.
Pathophysiology
An increased skin blood perfusion occurs in exfoliative dermatitis that results in temperature dysregulation (resulting in heat loss and hypothermia) and possible high-output cardiac failure. The basal metabolic rate rises to compensate for the resultant heat loss. Fluid loss by transpiration is increased in proportion to the basal metabolic rate. The situation is similar to that observed in patients following burns (negative nitrogen balance characterized by edema, hypoalbuminemia, loss of muscle mass).
A marked loss of exfoliated scales occurs that may reach 20-30 g/d. This contributes to the hypoalbuminemia commonly observed in exfoliative dermatitis. Hypoalbuminemia results, in part, from decreased synthesis or increased metabolism of albumin. Edema is a frequent finding, probably resulting from fluid shift into the extracellular spaces. Immune responses may be altered, as evidenced by increased gamma-globulins, increased serum IgE in some cases, and CD4+ T-cell lymphocytopenia in the absence of HIV infection.
Epidemiology
Mortality/Morbidity
Mortality varies according to the disease's cause. In a study of 91 of 102 patients with exfoliative dermatitis by Sigurdsson et al,[1] a mortality rate of 43% was observed. Only 18% of the deaths were directly related to exfoliative dermatitis. In 74% of the deaths, causes unrelated to exfoliative dermatitis were implicated.
Race
No racial predilection is reported for exfoliative dermatitis.
Sex
Male-to-female ratio is 2-4:1.
Age
Exfoliative dermatitis onset usually occurs in persons older than 40 years, except when the condition results from atopic dermatitis, seborrheic dermatitis, staphylococcal scalded skin syndrome, or a hereditary ichthyosis. Age of onset primarily is related to etiology.[2, 3]
Sigurdsson V, Toonstra J, Hezemans-Boer M, van Vloten WA. Erythroderma. A clinical and follow-up study of 102 patients, with special emphasis on survival. J Am Acad Dermatol. Jul 1996;35(1):53-7. [Medline].
Sarkar R, Garg VK. Erythroderma in children. Indian J Dermatol Venereol Leprol. Jul-Aug 2010;76(4):341-7. [Medline].
Fraitag S, Bodemer C. Neonatal erythroderma. Curr Opin Pediatr. Aug 2010;22(4):438-44. [Medline].
Yuan XY, Guo JY, Dang YP, Qiao L, Liu W. Erythroderma: A clinical-etiological study of 82 cases. Eur J Dermatol. May-Jun 2010;20(3):373-7. [Medline].
Byer RL, Bachur RG. Clinical deterioration among patients with fever and erythroderma. Pediatrics. Dec 2006;118(6):2450-60. [Medline].
Griffiths TW, Stevens SR, Cooper KD. Acute erythroderma as an exclusion criterion for idiopathic CD4+ T lymphocytopenia. Arch Dermatol. Dec 1994;130(12):1530-3. [Medline].
Scrivener Y, Cribier B, Le Coz C, Boehm N, Jelen G, Heid E, et al. [Erythroderma with immunoglobulin deposits along the basal membrane. Pemphigoid erythroderma?]. Ann Dermatol Venereol. Jan 1998;125(1):13-7. [Medline].
Ram-Wolff C, Martin-Garcia N, Bensussan A, Bagot M, Ortonne N. Histopathologic diagnosis of lymphomatous versus inflammatory erythroderma: a morphologic and phenotypic study on 47 skin biopsies. Am J Dermatopathol. Dec 2010;32(8):755-63. [Medline].
Zackheim HS, Kashani-Sabet M, Hwang ST. Low-dose methotrexate to treat erythrodermic cutaneous T-cell lymphoma: results in twenty-nine patients. J Am Acad Dermatol. Apr 1996;34(4):626-31. [Medline].
Sigurdsson V, Toonstra J, van Vloten WA. Idiopathic erythroderma: a follow-up study of 28 patients. Dermatology. 1997;194(2):98-101. [Medline].
Bruno TF, Grewal P. Erythroderma: a dermatologic emergency. CJEM. May 2009;11(3):244-6. [Medline].
Burton JL, Holden WE. Lichenification and prurigo. In: Champion RH, ed. Textbook of Dermatology. 6th ed. London, England: Blackwell Science; 1998:673-8.
Cohen LM, Skopicki DK, Harrist TJ. Non-infectious vesiculobullous and vesiculopostular diseases. In: Elenitsas R, ed. Lever's Histopathology of Skin. 8th ed. Philadelphia, Pa: Lippincott Williams & Wilkins; 1997:216.
Freedberg IM. Exfoliative dermatitis. In: Freedburg IM, Fitzpatrick TB, Goldsmith LA, et al, eds. Fitzpatrick's Dermatology in General Medicine. 5th ed. New York, NY: McGraw-Hill; 1999:534-7.
Nakamura M, Tokura Y. Tocilizumab-induced erythroderma. Eur J Dermatol. May-Jun 2009;19(3):273-4. [Medline].
Prakash BV, Sirisha NL, Satyanarayana VV, Sridevi L, Ramachandra BV. Aetiopathological and clinical study of erythroderma. J Indian Med Assoc. Feb 2009;107(2):100, 102-3. [Medline].
Sehgal VN, Srivastava G. Exfoliative dermatitis. A prospective study of 80 patients. Dermatologica. 1986;173(6):278-84. [Medline].
Torres-Camacho P, Tirado-Sánchez A, Ponce-Olivera RM. A study of erythroderma: clues from eosinophilia and elevated lactate dehydrogenase levels. Indian J Dermatol Venereol Leprol. Sep-Oct 2008;74(5):499-500. [Medline].
Wong KS, Wong SN, Tham SN, Giam YC. Generalised exfoliative dermatitis--a clinical study of 108 patients. Ann Acad Med Singapore. Oct 1988;17(4):520-3. [Medline].
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