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Carcinoid tumors (CT) are among the least studied tumors. It is a relatively rare and slow-growing tumor with good survival in its primary form. However, metastatic carcinoid tumor comes up with many different complications contributing to increased morbidity and mortality. Metastatic form of the disease has a wide spectrum of clinical manifestations and multisystem involvement including cardiovascular manifestations, neurological manifestations, and psychiatric manifestations and so on. In this review, we are centered towards the cardiovascular manifestations of the disease, which, by far, is one of the commonest causes of death in these patients. Being a neuroendocrine tumor, cardiovascular manifestations are mainly because of biologically active substances, produced by the tumor cells, remodeling the heart. Development of targeted therapies against carcinoid heart diseases is currently limited by lack of …