[Acquired pathology of the hip in children].

Hip pathology is a frequent motive for consultation in the field of paediatrics. The clinical examination and the radio-imagery both play a central role in the diagnostic process. If acute benign synovitis is the principal cause in the child, it remains a diagnosis of exclusion and must not in any case lead to a missed diagnosis of septic arthritis. Other diagnoses should be evoked according to the age of the child: epiphysiolysis, true surgical emergency, primary osteochondritis of the hip, early inflammatory polyarthritidies.