Neuroendocrine Tumors: Symptoms, Causes, Treatment
الأورام العصبية الصماوية
Neuroendocrine tumors arise from cells with nerve-like and hormone-producing features. They occur in sites including the gut, pancreas and lungs, with widely varying growth rates and treatments.
What is Neuroendocrine Tumors?
Some secrete hormones and others do not. Well-differentiated tumors differ from poorly differentiated neuroendocrine carcinomas; the label alone cannot determine severity.
Related reading: Carcinoid syndrome in selected tumors.
Symptoms
Early disease may be silent, or cause pain, obstruction or weight loss. Selected hormone-producing tumors cause diarrhea, flushing or low-blood-glucose episodes.
Causes
Changes in cellular growth cause tumors, often without an identifiable trigger. A proportion is associated with inherited syndromes requiring targeted genetic assessment.
Risk factors
Risk factors differ by site, subtype and inherited syndromes. An affected relative does not automatically mean other family members have the disease.
Diagnosis
Pathology determines tumor type, differentiation and proliferation index, while imaging assesses extent. Hormone and somatostatin-receptor tests depend on the tumor and symptoms.
Treatment
Options include surgery, selected surveillance, somatostatin analogues, targeted drugs, radionuclide therapy or chemotherapy. Site, grade, receptors and spread guide the plan.
Complications
Pressure effects, obstruction, spread or hormonal and nutritional complications may occur. Outcomes vary greatly; these tumors cannot all be described as slow-growing or harmless.
Prevention
Most cases have no established preventive strategy. Attend recommended surveillance and discuss genetic counseling if the history or tumor features warrant it.
When to see a doctor
Severe abdominal pain with vomiting or obstruction, fainting, severe hypoglycemia or breathlessness requires urgent assessment. Persistent new symptoms need oncology review.