Gastric Carcinoma: Diagnosis, Staging, and Treatment.

The diagnostic evaluation of gastric carcinoma should include high-resolution video endoscopy, and its treatment should be stage-adapted and interdisciplinary. Monoclonal antibodies and immune checkpoint inhibitors are increasingly being used for palliative treatment. The new modifications to the clinical practice guideline will promote the use of uniform strategies for perioperative and palliative treatment and supportive measures.