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A 16-year-old boy reported a two-to-three-month history of back pain during sports activities. The pain radiated to the buttocks, but without signs of sciatica. The patient had no history of trauma. His parents had noticed that he had had a growth spurt several months previously. The clinical examination revealed isolated shortening of the hamstrings. Intensive physical therapy resolved the pain. At nine years of age, the patient had undergone a five-month course of corticosteroid therapy for a relapse of severe SchönleinHenoch purpura with acute nephritis and hematuria, arthralgia, and gastrointestinal involvement. The disease caused a global growth arrest with increased . . . [Full Text of this Article] |