Carcinoid Tumours Home A-Z Health Information Health Library A-Z Carcinoid Tumours Overview Carcinoid tumours refer to slow-growing neuroendocrine tumours typically developing in the gastrointestinal tract or lungs. Symptoms Tumours can produce hormones that cause symptoms like flushing, diarrhoea, and wheezing. Diagnosis Blood and urine tests to measure hormone levels, imaging studies like CT or MRI, and biopsy to confirm the tumour type. Treatment Surgery to remove the tumour, medications to manage symptoms, and sometimes radiation or chemotherapy for advanced cases. Regular monitoring is essential to manage symptoms and detect any tumour recurrence. Early diagnosis and treatment of disease enhance outcomes and quality of life for patients with carcinoid tumours.