Neuroendocrine tumors are a heterogeneous group of tumors that are formed in cells capable to produce hormones in the blood which act as a result of a signal from the nervous system. Such tumors may produce more hormones than usual which causes different symptoms. They can develop in any organ of the body although its presentation in the digestive tract, pancreas and is more frequent bronchopulmonary tract. Approximately 65% belong to the digestive tract, 25% to the bronchial pulmonary tract and 10% are considered as others. There is a diversity of clinical characteristics, which is associated with a low incidence, it is estimated at 6.98 new cases per 100,000 habitants, this makes them difficult to diagnose since in many cases the symptoms are either specific or found by chance, but in more than half of the cases the diagnosis is late when the disease is already advanced, so interdisciplinary management is necessary. It is estimated the approximately more than 12,000 people in the United States are diagnosed with neuroendocrine tumors each year, 175,000 people are living with this disease. In Spain, 3,220 new cases are diagnosed each year and 17,000 patients are affected.

Shenely Vaneza Gray Torres studied the career of medicine in the International University of the Americas through a scholarship and since that moment she has not regretted a single day in her life for have chosen this wonderful career as an opportunity to help people. Right now, she is working as a physician in Hospital Mexico, the main Costa Rican health center of the 20th century, in recognition of the Mexican work who donated the plans and managed the training of the staff. Her mother is a teacher and her father was an accountant. She has two brothers and she was born on May 14th in San Jose Costa Rica, a small country located in Central America, it has a population aproximately of five million one hundred fifty four inhabitants.