hormonal and metabolic disorders
Carcinoid Tumors and Carcinoid Syndrome
Symptoms
People with carcinoid tumors can develop symptoms due to the growth of the tumor, similar to symptoms of other intestinal tumors. These symptoms are mainly cramping pain and changes in bowel movements as a result of the tumor blocking the intestine. Fewer than 10% of people with carcinoid tumors develop symptoms of carcinoid syndrome, although this percentage varies depending on where the tumor is located. The most common, and often earliest symptom of carcinoid syndrome is Uncomfortable flushing, typically of the head and neck Flushing, the result of blood vessel widening (dilation), can be triggered by emotions, by eating, or by drinking alcohol or hot liquids. The flushing may cause the skin to have color changes ranging from red to violet to purple. Excessive contraction of the intestine may result in abdominal cramping and diarrhea. The intestine may not be able to absorb nutrients properly, resulting in Undernutrition and fatty, foul-smelling stools. Heart damage may occur, which can result in symptoms of right Heart Failure (HF) such as swelling of the feet and legs (edema). Wheezing and shortness of breath may result from blockage of airflow in the lungs. Some people with carcinoid syndrome lose interest in sex, and some men have Erectile Dysfunction (ED) . 