The signs and symptoms of carcinoid syndrome can vary depending on the location and size of the tumor, as well as the specific hormones and substances that are being released. Some common symptoms of carcinoid syndrome include:
- Flushing: This is a feeling of warmth and redness in the face, neck, and upper chest. It is caused by the release of histamine and other substances from the tumor.
- Diarrhea: This can be caused by the release of serotonin and other substances that affect the function of the intestines.
- Wheezing and shortness of breath: This can occur when carcinoid tumors in the lungs release substances that cause bronchoconstriction, or narrowing of the airways.
- Abdominal pain and cramping: This can occur if the tumor is located in the abdomen.
- Fatigue: This is a common symptom in people with carcinoid syndrome, and can be caused by the release of various hormones and other substances from the tumor.
- Rapid heartbeat: This can be caused by the release of various hormones and other substances from the tumor.
- Skin changes: Carcinoid tumors can cause changes in the skin, such as thickening, pigmentation, or redness.
- Weight loss: This can occur if the tumor is affecting the function of the digestive tract.
- Small, widened blood vessels on their face
- Sudden drops in blood pressure
It’s important to note that not all people with carcinoid tumors will develop carcinoid syndrome, and some people with the syndrome may not have any visible tumors.