31. There may be dilatation , which is often more pronounced in the second, third and fourth parts. 32. He thought a tumour unlikely, and expected to find ventricular dilatation that surgery might prevent from progressing. 33. This may lead to right ventricular failure ( dilatation and decreased systolic function of the right ventricle ). 34. A stent may be inserted to keep the newly formed airway patent or repeated dilatation may be performed. 35. Some patients may, however, develop narrowing ( stenosis ) or dilatation at the previous coarctation site. 36. All had marked dilatation of the bladder and some had hydronephrosis and the external appearance of prune belly. 37. These tests will reveal dilatation of the pancreatic duct or one of the branches of the pancreatic duct. 38. The stent allows for easier passage of the stone by relieving obstruction and through passive dilatation of the ureter. 39. A diameter of more than 8 mm is regarded as abnormal dilatation , and is a sign of cholestasis. 40. This can lead to the subsequent displacement of the papillary muscles and the dilatation of the mitral valve annulus.
