The preoperative stage was determined by contrast-enhanced computed tomography (CT) of the chest, abdomen and pelvis. The original pathologic TNM stages of patients in the databases were based on the 6th and 7th AJCC on Cancer staging system. The original pathological reports were reviewed by clinician, and then modified all the pathologic stages according to the 8th edition 8. Adjuvant chemotherapy was administered to patients after histological evaluation of the surgical specimen according to the National Comprehensive Cancer Network (NCCN) guidelines. Postoperative follow-up was performed every 3-6 months for the first 3 years, then every 12 months from years 4 to 5. The routine patient follow-up appointments included a physical examination, laboratory tests, chest radiography, abdominal ultrasonography, CT or positron emission computed tomography (PETCT) and an annual endoscopic examination. CT was the most frequently used imaging method, including chest, abdomen and pelvis with intravenous contrast. Diagnosis of recurrence was based on new lesions on CT, PETCT or histological confirmation through biopsy.

Note: The content above has been extracted from a research article, so it may not display correctly.

Please log in to submit your questions online.
Your question will be posted on the Bio-101 website. We will send your questions to the authors of this protocol and Bio-protocol community members who are experienced with this method. you will be informed using the email address associated with your Bio-protocol account.

We use cookies on this site to enhance your user experience. By using our website, you are agreeing to allow the storage of cookies on your computer.