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Neuroendocrine Tumors (NETs): Why They're Often Misdiagnosed
By Dr. Gajendra Kumar Himanshu
Neuroendocrine tumors (NETs) are an uncommon group of tumors that grow from neuroendocrine cells, specialized cells that are distributed throughout the body and assist in regulating hormones and other critical processes. These can be tumors in the digestive system, pancreas, lungs, and other regions of the body. One of the main issues with neuroendocrine tumors is that they are frequently misdiagnosed or identified late because their symptoms can be ambiguous, sluggish to develop, and comparable to many prevalent health conditions.
Some patients have symptoms for years before they are given an accurate diagnosis. This may assist patients and families in understanding why NETs are often misdiagnosed as other diseases, how they are diagnosed, and what treatment choices are available so they may seek proper medical care and make informed decisions about their health.
In this blog, we will discuss what neuroendocrine tumors are, why they are commonly misdiagnosed, their symptoms, how they are identified, and what treatment options are available.
What are Neuroendocrine Tumors (NETs)?
Neuroendocrine tumors grow from neuroendocrine cells that are stimulated by signals from the neurological system and secrete hormones into the blood.
These tumors can occur in numerous locations of the body, for example, in:
- Small bowel
- Pancreas
- Lung
- Tummy
- Rectum
- Appendix
Some NETs can grow slowly over many years, and some may grow faster.
Why Neuroendocrine Tumors Are Often Misdiagnosed
Misdiagnosis is a major reason why NETs are often missed, as the symptoms of these tumors might resemble those of other common medical disorders.
Many people are treated for some other ailment first before the accurate diagnosis is obtained.
Symptoms can be similar to other conditions
Symptoms may be similar, depending on the location of the tumor and if it generates hormones:
- Irritable Bowel Syndrome (IBS)
- Asthma in Adults
- Gastritis
- Heartburn
- Anxiety disorders
- Menopause symptom relief
Because these disorders are so much more common than NETs, doctors might look for them first.
Onset of symptoms may be slow
Many neuroendocrine tumors grow slowly. People may have modest symptoms for months, even years, before seeking medical care. It can be difficult to detect the illness in the early stages as it develops slowly.
Symptoms Differ From Person To Person
The symptoms vary from patient to patient. Some people may encounter digestive problems; others may develop respiratory problems, flushing, or hormonal changes. This variance can occasionally lead to a delay in diagnosis.
Neuroendocrine Tumors: Common Symptoms
Symptoms depend on where the tumor is and if it makes hormones. Symptoms can include:
- Stomach ache
- Persistent Diarrhoea
- Skin flushing
- Weight loss without a clear reason
- Wheezy
- Breathlessness
- Weariness
- Feeling sick (nausea)
- Changes in hunger
- Heart palpitations
Some tumors may be found when tests are done for other reasons, and some people may have no symptoms at all.
How Are Neuroendocrine Tumors Detected
No single test can provide all the answers, so diagnosing NETs frequently involves a mix of exams.
Medical History and Physical Exam
Doctors start by looking at symptoms, medical history, family history, and any long-term health changes.
Urine and Blood Tests
Special laboratory testing may help find hormone levels or chemicals made by neuroendocrine tumors. These tests may give vital clues in the process of diagnosis.
Radiologic Investigations
Imaging helps doctors find the tumor, how large it is, and how far it has spread.
Commonly used imaging tests include:
- CT scan
- MRI scan
- PET scan
- Nuclear medicine scans (specific)
Genetic Testing and Biopsy
A biopsy is the removal of a small piece of tissue to be looked at under the microscope. Your doctor may also suggest molecular or genetic testing to better understand the tumor and help decide the best treatment.
Patients can go to the National Library of Medicine for up-to-date, accurate information on neuroendocrine tumors and cancer care.
Treatment of Neuroendocrine Tumors
Treatment is based on some factors, including:
- Site of the tumor
- Tumor dimension
- Growth rate
- Production of hormones
- Family Medical History
- Genetic test findings
- General health
- Patient’s choice
- Doctor's opinion
Each treatment plan is tailored to the demands of the individual.
Practical Treatment Summary
Management | Objective |
|---|---|
Active Surveillance | Observe slow-developing cancers in selected cases |
Surgical Treatment | Tumor removal when indicated |
Medicines | Manage hormone-related symptoms |
Targeted Therapies | Target cancers with specific molecular traits |
Chemo Therapy | Control certain NET types |
Treatments Using Radiation | Target cancer cells in selected settings |
Available Treatment Options
Treatment for neuroendocrine tumors is tailored to each patient based on the tumor's type, location, stage, and overall health. The goal is to control tumor growth, manage symptoms, and improve quality of life.
When Surgery May Be an Option
When the tumor can be safely removed, surgery is often an important therapy choice. However, surgery is not suitable for every patient and should not be seen as a sure fix. The decision depends on personal risk, family history, genetic testing findings, general health, tumor features, and the doctor's opinion.
Other Treatment Methods
Many patients benefit from medication that controls hormone-related symptoms and slows tumor growth. Doctors might suggest, depending on the situation:
- Hormone Modulating Medications
- Targeted Therapy
- Chemo
- Radiation therapies
- Participation in clinical trials
Life With a Neuroendocrine Tumor Diagnosis
Getting a diagnosis of NET can be a period of uncertainty, especially when symptoms have been persistent for a long time before definitive answers are found. For many patients, it is helpful to:
- Their situation explained
- Go regularly to follow-up visits
- Monitor their symptoms and test findings
- Follow the treatment program carefully
- Seek emotional support by talking to family and friends
- Open and honest discussion with their health care provider about problems
Many people still have an excellent quality of life with adequate monitoring and treatment.
Consult Today
Neuroendocrine tumors are rare cancers that are frequently misdiagnosed because they have symptoms similar to those of many common medical diseases. They develop slowly, have a broad spectrum of symptoms, and can occur in different parts of the body, making diagnosis difficult. Early detection of persistent symptoms, adequate diagnostics, and customized treatment planning help patients get the right therapy sooner.
"Treatment decisions should always be made based on an individual’s risk factors, family history, genetic testing results, overall health, and the recommendations of well-trained medical professionals."
Oncare Cancer Hospital is a trusted name for those who need expert cancer care, providing comprehensive cancer diagnosis, treatment, and patient support services.
Frequently Asked Questions
NETs are tumors that grow from neuroendocrine cells, which help regulate hormone synthesis and other processes in the body.
Their symptoms often mimic other more common disorders, such as IBS, acid reflux, asthma, or anxiety, which can lead to a delayed diagnosis.
Yes. Treatment can include surgery, medicines, targeted therapy, chemotherapy, or other specialized treatments.
No. Some neuroendocrine tumors do not cause symptoms and may be found after testing is done for other health problems.
Written and Verified by:
Dr. Gajendra Kumar Himanshu Exp: 10 Yr
Medical Officer
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