Figure 13c. Pelvic lymphoceles in a 48-year-old woman after appendectomy. (a) Pelvic lymphogram obtained during the filling phase shows a right-sided pelvic cavity filled with contrast material (arrow). There is also a smaller cavity filled with contrast material (arrowhead). There is no opacification of lymphatic vessels beyond the large lymphocele. (b) CT scan obtained after lymphography shows that the lymphocele is partially filled with contrast material. (c) Pelvic lymphogram obtained during the nodal phase shows the lymphoceles. It also shows stasis of contrast material prior to the lymphoceles and no opacification of the lymph nodes beyond the large lymphocele.