PET Avidity in Cachexia-Inducing Lung and Gastrointestinal Tumors

This study will be a retrospective review of patients in the tumor registry with lung and gastrointestinal tumors, not limited to but including small and non-small cell lung cancers, stomach cancer, small intestinal cancer, colon cancer, rectal cancer, liver and intrahepatic bile duct cancers, gallbladder and extrahepatic bile duct cancers, and pancreatic cancer.

There will be a maximum of 10,000 charts/records that will be reviewed to compile the data. Data to be collected will include patients' name, medical record number, date of birth, race, ethnicity, gender, medical history, medications, vital and performance status, vital signs including weight and body mass index, date of cancer diagnosis, clinical and pathologic stage, pathology, treatment course, prior treatment, location of primary lesion, and smoking history. CT and PET findings to be reviewed include the number of involved lymph nodes, size of primary tumor, average/maximum PET avidity in both the primary tumor and involved lymph nodes.