Gene Testing in Patients With Colon Cancer

You may be eligible if

• DISEASE CHARACTERISTICS:
• Patients who received chemotherapy for colon cancer as part of CALGB protocol 8896
• Underwent an initial resection for adenocarcinoma of the colon and were determined to have a high risk of tumor recurrence based upon nodal disease or local extension of tumor with obstruction or perforation due to tumor
• Surgical specimen blocks available, including tumor tissue and normal tissue