Intestinal duplication in adulthood: A rare entity, difficult to diagnose

Figure 1 Small bowel follow through shows an ileal stricture associated with dilation above stenosis and suspected entero-enteric fistula at about 30 cm from the íleo-cecal valve. No conclusive diagnosis was made on the basis of this examination.

Figure 2 Entero-computed tomography showing a marked ileal dilatation, with no evidence of mucosal lesions or fistulae.

Figure 3 Histological section of the intestinal duplication at low magnification, showing the wall structure including the mucosa, the submucosa and the inner circular layer of the muscolaris própria (hematoxilin-eosin, original magnification 20 ×).