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Se presenta un paciente de sexo femenino y 13 de años, sin antecedentes de relevancia, que consultó por episodios de dolor abdominal posprandial. El diagnóstico fue síndrome de la arteria mesentérica superior. La tomografía computada multicorte mostró una disminución del diámetro del compás aortomesentérico y del ángulo de apertura, con atrapamiento de la tercera porción del duodeno. Se desarrollan las características clínicas e imagenológicas del caso, y se realiza una revisión de los hallazgos radiológicos.

Introduction: Intussusception is uncommon in adult age. Frequently, depending on the location is associated to a subjacent pathology. Given multiple applications of sectional imaging methods such as CAT, intussusception is found incidentally in most of the cases. Objective: Determining signs allowing to recognize it, identifying causing or demonstrating the spontaneous reduction through CAT. Material and methods: A series of patients hospitalized in our institution, with several clinical diagnoses, in a period of 3 years 6/12 and that incidentally, intussusception was appreciated. Studies were carried out with 8 detectors CAT with simple phase pelvic-abdominal protocol and with oral contrasts and IV - arterial, portal and excretory phases -. Results: Invagination in 37 patients (17 male patients, 46% and 20 female patients, 54%) with an age range of 19 to 65 years old was shown, demonstrating the following percentages: The most common invagination sites, of uncertain etiology, of dynamic spontaneous resolution and was indeed shown with intraabdominal tumoral lesions (five cases, 14%). Conclusions: Invagination in adults is infrequent, causing 1% of intestinal obstructions. In an increased percentage, reaching up to 86 % of cases, intussusception is an incidental, asymptomatic and idiopathic findings, during CT studies. [ABSTRACT FROM AUTHOR]