Radiation Therapy With or Without Cisplatin in Treating Patients With Recurrent Endometrial Cancer

Inclusion Criteria: * All patients must have undergone complete hysterectomy and bilateral salpingo-oophorectomy at the time of original therapy for their uterine carcinoma * Patients must have a biopsy with histologically confirmed diagnosis of recurrent endometrial cancer confined to the pelvis and/or vagina and no evidence of extrapelvic disease * Patients must have endometrial carcinoma including endometrioid adenocarcinoma, adenocarcinoma with squamous differentiation, mucinous adenocarcinoma, squamous cell carcinoma, mixed carcinoma, undifferentiated carcinoma, clear cell adenocarcinoma, and serous adenocarcinoma histologies * Patients must have no evidence of extrapelvic disease; complete workup staging should be performed prior to initiation of therapy to rule-out presence of metastatic disease; this should include: computed tomography (CT) scan of the thorax with IV contrast, as well as a CT of the pelvis and abdomen with IV and oral (PO) contrast performed using multi-detector CT and equal or less than 5 mm slice thickness; if the patient is unable to tolerate contrast, then magnetic resonance imaging (MRI) with IV gadolinium should be performed; a chest x-ray should be done first, and if abnormal, then a CT scan of the chest should be done * Primary surgical debulking before protocol therapy is permissible; this would include removal of gross symptomatic disease in the pelvis and/or vagina * Exenterative surgery is not permissible; patients with complete resect…