Most carcinoid tumors have no symptoms. When symptoms do occur, they may include:
- Abdominal pain that comes and goes
- Bright red flushing of the face, neck, or upper chest
Heart palpitations Low blood pressure Wheezing
Sometimes symptoms are brought on by physical exertion, or eating or drinking things such as blue cheeses, chocolate, or red wine.
Signs and tests
Most of these tumors are found when tests or procedures are done for other reasons, such as during abdominal surgery.
A physical examination may show:
- Heart valve lesions
- Signs of niacin-deficiency disease (
Tests may include:
5-HIAAlevels in urine
- Blood tests (including
serotoninblood test) CTand MRIscan of the chest or abdomen
- Octreotide radiolabelled scan