Pre- and Post-operative TEG Indices in Patients With or Without Adenocarcinoma Undergoing Surgical Resection

The investigators hypothesize that abnormalities in thromboelastography (TEG) parameters in patients with liver, pancreas, biliary, esophageal, colorectal, and lung adenocarcinoma can serve as biomarkers for oncologic disease burden, cancer recurrence and overall survival as well as thrombotic and hemorrhagic post-operative complications. The investigators further hypothesize that there is histologic pathology correlates to pre-operative TEG abnormalities, and that it identifies patients with virulent tumor biology.

Inclusion Criteria: * new diagnosis by the providing physician of hepatopancreaticobiliary, esophageal, colorectal, lung adenocarcinoma, or liver metastasis of any origin will be eligible for enrollment in the study * 18 Years and older Exclusion Criteria: * Under 18 years old * prisoners * unable to provide informed consent * pregnant women * and those undergoing emergent or urgent operative intervention at the time of diagnosis