Endoscopic exams are essential for several reasons:
Early Detection: They help in the early detection of cancer, which is often critical for successful treatment. Biopsy: They allow for the collection of tissue samples for biopsy, confirming the presence and type of cancer. Staging: They help in staging the cancer, determining its extent and spread, which is crucial for planning treatment. Monitoring: They are used to monitor the effectiveness of treatment and check for recurrence.