Patients undergo radiotherapy once daily on days 1-5, 8-12, 15-19, 22-26, 29-33, and 36. Some patients may also undergo brachytherapy. Patients also receive cisplatin intravenously (IV) over 1 hour on days 1, 8, 15, 22, 29, and 36 and topotecan IV continuously on days 1-5, 8-12, 15-19, 22-26, 29-33, and 36. Treatment continues in the absence of disease progression or unacceptable toxicity.