[Psoas abscess in Crohn's disease. Report of a new case].

Psoas abscess complicating Crohn's disease is a rare condition. The clinical diagnosis is confirmed by ultrasonography and/or computerized axial tomography. Etiology of the abscess is confirmed by digestive opacifications. We present one case of recurrence psoas abscess, revealing Crohn's disease in young girl of 18 years. Therapy is consisting in a pathologic bowel resection after urgency drainage. After literature review we, try to propose diagnostic and therapeutic walk of this affection.