Churg Strauss syndrome in childhood.

We describe a 7-year-old boy with Churg Strauss syndrome who presented with a 3-month history of cough, wheeze, fever, weight loss, abdominal pain, skin lesions, proteinuria and pulmonary infiltrates with eosinophilia. He showed a good response to corticosteroid treatment and is currently doing well. The case illustrates the difficulty and importance of reaching a diagnosis in a rare condition for which there is an effective treatment, and serves to remind paediatricians of its existence.