Carcinoid Tumor: Symptoms and Causes

Carcinoid tumor symptoms do not present in the early stages. Some of the symptoms, if present, may overlap with other conditions. It is essential not to ignore the signs and consult with the doctor. Carcinoid tumor causes include the presence of genetic diseases.

What are Carcinoid Tumor Symptoms?

Some of the common signs and symptoms of carcinoid tumors include:

Carcinoid Tumor Types and Its Symptoms

Apart from the common carcinoid tumor symptoms, certain symptoms are specific to the location of carcinoid tumors. These include:

Carcinoid Tumor in lungs

The following are the commonly observed lung carcinoid tumor symptoms:

Carcinoid Tumors in the digestive tract

Carcinoid tumor symptoms related to the gastrointestinal tract include:

What are the Carcinoid Tumor Causes?

Many wonder as to what causes carcinoid tumors of the lung. Although we do not know the exact cause, we do know that certain factors increase the risk of carcinoid tumors. Some of the causes of carcinoid tumors are:

When to See an Oncologist?

It is important to consult the oncologist if the individual experiences weight loss, rectal bleeding, chest pain, shortness of breath, diarrhea, abdominal pain, nausea and vomiting, wheezing, redness of the face and neck, a heart murmur, and breathing complications.


Carcinoid tumor symptoms include abdominal pain, anemia, diarrhea, fatigue, heart murmur, jaundice, hypotension, nausea and vomiting, shortness of breath, weight loss, and wheezing. The carcinoid tumor causes include MEN1, MEN2, Von Hippel-Lindau syndrome, and neurofibromatosis type 1.

Frequently Asked Questions

Carcinoid tumors are generally slow-progressing tumors. They take years to grow and show symptoms.

The duration of symptoms depends on the type of symptoms. For instance, episodes of flushing usually last for a few minutes to a few hours.

Although stress does not cause carcinoid cancer, it may worsen its symptoms.

Genetic causes of carcinoid tumors include MEN1, MEN2, Von Hippel-Lindau syndrome, and neurofibromatosis type 1.

Carcinoid tumors originate from neuroendocrine cells.