Intussusception is the most common surgical indication of anaphylactoid pur
pura. About 50% of cases are of the ileo-ileal type. Surgical intervention,
rather than radiologic reduction, is preferable for older children sufferi
ng from anaphylactoid purpura with intussusception, where a lead point lesi
on is often found. The authors report a case of anaphylactoid purpura with
intussusception with spontaneous reduction, and postulate that subsequent t
o relieving bowel-wall edema using antihistamine and steroid therapy, the i
leo-ileal intussusception may spontaneously reduce.