Tumores pancreáticos en pediatría / Primary pancreatic neoplasms in children

Los tumores pancreáticos son infrecuentes en niños. Comunicamos los hallazgos de diagnóstico por imágenes observados en una serie de 9 niños tratados durante el período 1989-2000 con diferentes tipos tumorales (insulinoma, pancreatoblastoma, sólido-quístico-papilar y adenocarcinoma). Utilizamos ultrasonido, tomografía computada, aangiografía y resonancia magnética, que permitieron mostrar la masa tumoral en todos los casos, excepto en uno de insulinoma. No pudo determinarse la localización pancreática en un pancreatoblastoma. Las imágenes fueron de fundamental importancia para la estadificación y un abordaje quirúrgico adecuado para esta rara patología pediátrica

Valor diagnóstico de la defecografía / Diagnostic value of defecography

The aim of this study was to assess the importance of defecatography in the diagnosis of lower chronic constipation (4) or rectal type (12), principally in those patients on whom other diagnostic methods had not produced supportive data. Over a 64 month period, 65 patients who had consulted because of chronic constipation, were studied; they were suffering from low bowel symptoms like difficulty in the evacuation of the rectum. The average age was 48 and mostly female. All of them were asked to prepare the same mixture for the defecatory study, using the same type of contrast material and study technique. In most of the cases correlated functional elements were found, while very few cases resulting from just organic causes were found, and only one without functional or organic reason was found. Our results were as follows. 1) Insufficient laxity of the pubo-rectal beam related to forward or backward rectocele or lowering of the increased pelvic floor, a fact that was found in 19 patients (29.23 percent). 2) Inadequate laxity of the pubo rectal beam in 12 patients (18.46 percent ). 3) Paradoxical contraction of the pubo rectal beam related to forward rectocele or lowering of the increased pelvic floor, in 11 patients (16.92 percent). 4) Lowering of the increased pelvic floor, related to forward or backward rectocele in 8 patients (12.30 percent). 5) Paradoxical contraction of the pubo rectal beam in 7 patients (10.76 percent ). 6) Forward or backward rectocele in 3 patients (4.61 percent). 7) Lowering of the increased pelvic floor in 2 patients (3.07 percent ). 8) Rectal intususception in 1 patient (1.53 percent). 9) Average study in 1 patient (1.53 percent ). Therefore, the defecatography is a very useful method of study to appraise constipation with anorectoperineal symptoms, as it allows us to diagnose organic and functional problems in the area (6). Likewise, the importance of pre and post surgical tests, both therapeutic and reconstructive must be underlined.