Modern approaches to the diagnosis and treatment of neuroendocrine neoplasms
This article presents a systematic review of literature data that provides information about the history of research of neuroendocrine neoplasms, a modern understanding of the pathophysiology of these tumors, classification approaches, and epidemiological data. Moreover the issues of the clinic and pathophysiology of the carcinoid syndrome, the general principles of the diagnosis and treatment of neuroendocrine neoplasms of the gastrointestinal tract according to the recommendations of the National Comprehensive Cancer Network (NCCN) 2019 are also reviewed.