Usefulness of FDG-PET for Advanced Cervical Cancer

Inclusion Criteria: * Newly diagnosed cervical cancer clinical stage FIGO I -IVA * Histologically proven cervical carcinoma (including histologic types of squamous cell carcinoma, adenocarcinoma, adenosquamous carcinoma, adenoid cystic carcinoma, lymphoepithelial-like carcinoma and malignant mixed mullerian tumor) * Presence of at least one enlarged pelvic lymph node (\>=1.0 cm in its maximal dimension), or group of small pelvic nodes (size \<1 cm), and without suspicious para-aortic lymph node metastasis or any lesion outside the pelvis by conventional MRI or CT study * Karnofsky performance scale \>=60 * Available for concurrent chemoradiation therapy of curative intent Exclusion Criteria: * Cervical tumor with histologic diagnosis of verrucous carcinoma or small cell carcinoma * Other serious illness or medical condition which would interfere with extended field irradiation or chemotherapy * Past or current history of malignancy, except for curatively treated non-melanoma skin cancer * Patients not suitable to receive PET study either by technical or psychological reasons * Patients who are judged to be noncompliant to treatment or not accessible for follow up