[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.