Photo Quiz

Pruritic Rash on the Hands and Feet

 

Am Fam Physician. 2018 Dec 1;98(11):685-686.

A 30-year-old woman reported that her chronic eczema had worsened over the previous several months. She had used emollient creams and topical and oral steroids in the past. Although the rash improved with steroids, it recurred when the treatment stopped. The patient was otherwise healthy.

Physical examination revealed a pruritic rash with peeling and cracking on the palmar and plantar surfaces of her hands and feet (Figure 1 and Figure 2). The underlying skin was erythematous. No other areas of her body were affected. She had no occupational exposures or contact with irritants, chemicals, or livestock.

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FIGURE 1


FIGURE 1

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FIGURE 2


FIGURE 2

Question

Based on the patient's history and physical examination findings, which one of the following is the most likely diagnosis?

A. Allergic contact dermatitis.

B. Atopic hand dermatitis.

C. Dyshidrotic eczema.

D. Pemphigus vulgaris.

Discussion

The answer is C: dyshidrotic eczema. This very pruritic condition (also called dyshidrotic dermatitis and pompholyx) is limited to the palms and soles.1,2 It presents as vesicles or larger bullae on the sides of the palms and soles.1 The lesions tend to persist for several weeks and resolve with desquamation. Recurrence is possible. The etiology is probably multifactorial, with some evidence pointing to atopic dermatitis, exposure to contact allergens, systemic exposure to contact allergens (e.g., ingestion of nickel or cobalt), dermatophyte infection, intravenous immune globulin, and hyperhidrosis.3 The diagnosis is based on the history and clinical appearance of the lesions. Patch testing, rapid plasma reagin testing, and potassium hydroxide preparation may be considered for initial workup.

Management of dyshidrotic eczema includes avoiding exposure to known irritants. Mild to moderate cases can be treated with two to four weeks of topical corticosteroids, whereas more severe cases may require an oral steroid taper. Topical

Address correspondence to Jinal Gangar, MD, MPH, at jinalgangardr@gmail.com. Reprints are not available from the authors.

Author disclosure: No relevant financial affiliations.

References

show all references

1. Wollina U. Pompholyx: a review of clinical features, differential diagnosis, and management. Am J Clin Dermatol. 2010;11(5):305–314....

2. Veien NK. Acute and recurrent vesicular hand dermatitis. Dermatol Clin. 2009;27(3):337–353.

3. Lodi A, Betti R, Chiarelli G, Urbani CE, Crosti C. Epidemiological, clinical and allergological observations on pompholyx. Contact Dermatitis. 1992;26(1):17–21.

4. Beck MH, Wilkinson SM. Contact dermatitis: allergic In: Griffiths CM, Barker JB, Tanya Bleiker, et al, eds. Rook's Textbook of Dermatology Volume 2. 8th ed. Hoboken, N.J.: John Wiley & Sons Inc.; 2016.

5. Simpson EL, Thompson MM, Hanifin JM. Prevalence and morphology of hand eczema in patients with atopic dermatitis. Dermatitis. 2006;17(3):123–127.

6. Venugopal SS, Murrell DF. Diagnosis and clinical features of pemphigus vulgaris. Dermatol Clin. 2011;29(3):373–380.

This series is coordinated by John E. Delzell Jr., MD, MSPH, Associate Medical Editor.

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