[Primary psoas abscess in a child. Case report and review of the literature]. / Abscesso primário do psoas em criança: relato de caso e revisão da literatura.

Primary psoas abscess is an uncommon disease. In children, clinical manifestations is often inspecific leading to diagnostic delay. The authors relate a primary pyogenic abscess of the psoas muscle in a 7-year-old girl with secondary septic arthritis of the hip. Confirmation of diagnosis was established by computerized tomography (CT) of the abdominal and pelvic areas. A review of the literature is presented about clinical manifestations, pathogenesis, differential diagnosis, etiology, diagnostic and therapeutic management of this infrequent entity.