Oral tacrolimus treatment for refractory eosinophilic cellulitis.

Oral tacrolimus treatment for refractory eosinophilic cellulitis.
Clin Exp Dermatol. 2009 Jun
Ohtsuka T.
Department of Dermatology, Dokkyo Medical University Koshigaya Hospital, Koshigaya, Saitama, Japan.

A 72-year-old man presented with a 1-month history of a rash. The eruption had previously been successfully treated with oral corticosteroids (prednisolone 30 mg/day) and antihistamines on two previous occasions, but recurred several days after stopping treatment. On examination, multiple, indurated, round to annular erythematous plaques were found on the trunk and limbs. Histological examination revealed interstitial oedema, a dense infiltrate of eosinophils in the dermis, and flame figure formation. These results led us to the diagnosis of eosinophilic cellulitis. Treatment with oral corticosteroids (prednisolone 15 mg/day) was unsuccessful. Four weeks after the start of oral tacrolimus 1 mg/day, the eruption completely resolved.

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