CAPSULE: Just as her children's book is published, Nancy is diagnosed with ovarian cancer.On a typical madhouse morning at the Weston house, Nancy is experiencing some back pain. Later when she sees Melissa and gives her a copy of the new book dedicated to her, Nancy says the pain may be stress related. While at school to pick up the kids, she gets ill has has to rush to the bathroom. Dr. Silverman does an ultrasound for Nancy the next day. At home she tells Elliot that the doctor found ""something,"" an ovary that has dropped behind her uterus, and she wants to do a test.Dr. Silverman does the examination and says there might be a tumor. More definitive results will come on Monday. Both Nancy and Elliot are worried, but try to keep family life normal and for now aren't telling anyone the news. When Nancy comes to pick up Ethan after a basketball practice, he gets upset with her because she didn't watch him play. Nancy loses her temper and snaps at him, then quickly apologizes. Ethan s