A comparison between ultrasonography and single-phase computed tomography for preoperative assessment of solid abdominal tumors in children.

Objective: This study aimed to estimate the performance of single-phase-enhanced computed tomography and ultrasonography examinations in the preoperative evaluation of solid abdominal tumors and their relationship with relevant adjacent structures in children.

Methods: This retrospective study included 50 pediatric patients with malignant solid abdominal tumors treated with surgical resection between 2009-2017. Preoperative computed tomography and ultrasonography were compared to operative findings (gold standard) in the diagnosis of invasion or encasement of adjacent structures.

[Anular pancreas--pancreatic resection or duodenal by-pass].

Purpose: To present the authors experience managing anular pancreas and to compare the results found by the authors with the ones found in the literature.

Methods: A retrospective review of four patients treated at the Departamento de Cirurgia da Faculdade de Medicina da Universidade Federal do Rio Grande do Sul with anular pancreas. The disease was present in three different ages: one in the neonatal age, one in childhood and two in the adulthood.