The goal of this prospective cohort study is to evaluate the progression of esophagogastric varices in patients treated with atezolizumab-bevacizumab. Assess the efficacy of primary prophylaxis of small esophageal varices with no risky signs and shortening endoscopic follow-up time intervals to reduce the risk of variceal hemorrhage. Researchers will assess the progression of esophageal varices (EVs) with no bleeding stigmata in patients treated with atezolizumab-bevacizumab therapy at 3, 6, 9, and 12 months with endoscopic examination. Evaluate the effect of shortening the endoscopic follow-up intervals to reduce the risk of variceal bleeding in patients treated with atezolizumab-bevacizumab therapy. Researchers will also assess the efficacy of variceal band ligation in small varices without bleeding stigmata before starting atezolizumab-bevacizumab therapy to reduce the progression of EVs. Participants will undergo history-taking, clinical examination, laboratory investigations, Triphasic CT abdomen with contrast or MRI (for evaluation of tumor site, size and number), abdominal ultrasonography, and upper endoscopy (within 6 months before beginning of systemic therapy and followed up after 3, 6, 9, and 12 months).