Abstract
Esophageal carcinomas comprise 2 entities, squamous cell carcinoma and adenocarcinoma, which differ in pathogenesis and treatment. Elimination of inflammatory influences and risk factors, such as obesity and gastroesophageal reflux that contribute to a rising incidence of adenocarcinoma, is crucial for tumor prevention. In Germany, general endoscopic screening for upper GI tumors is not recommended, whereas endoscopic surveillance is applied in the presence of Barrett's metaplasia. In the future, better prediction models will be needed to identify patients at risk who will benefit from endoscopic surveillance. Precancerous lesions and early tumor stages can be removed endoscopically using modern resection methods. In recent years, therapeutic strategies for advanced esophageal tumors have undergone significant changes. In the multimodal treatment of locally advanced stages, radiochemotherapy remains to play a key role for squamous cell carcinoma, whereas new evidence highlights the importance of perioperative chemotherapy for the optimal management of adenocarcinoma. Systemic treatment options for both tumor entities have been significantly expanded due to the successful use of immune checkpoint inhibitors in adjuvant and palliative treatment regimen. Determination of PD-L1 and MSI status has therefore become decisive for the choice of therapy. In metastatic stages of adenocarcinoma, chemotherapy can now be supplemented by multiple antibodies directed against Her2, PD1, or claudin 18.2, and the antibody-drug conjugate trastuzumab deruxtecan has become a Her2-targeted option in second line treatment.
Published Version
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