[Cystic duplication of the jejunum].

The paper presents a clinical case of jejunal duplication, a rare anomaly of the gastrointestinal tract. It describes an algorithm for hospital diagnostic and therapeutic measures. The capacities of radiodiagnostic studies, such as ultrasonography and magnetic resonance imaging, applied to this clinical case, are analyzed. The paper is supplemented by a concise review of the literature. An update suggests that there are diagnostic difficulties in this anomaly, even when a complete set of radiation techniques is applied and trained specialists participate.