Insulinoma Home A-Z Health Information Health Library A-Z Insulinoma Overview Insulinomas are tumours found in the pancreas that produce excessive amounts of insulin, leading to dangerously low levels of blood sugar. The pancreas typically regulates blood sugar by producing insulin, but in the case of insulinomas, the amount produced exceeds the body’s needs. These tumours are rare and usually remain localised, without spreading to other areas. The exact cause of insulinomas is not well understood. Symptoms ConfusionWeaknessSweatingRapid heartbeatBlurred visionWeight gain Diagnosis Typically confirmed through low plasma glucose levels alongside elevated insulin levels Treatment Most insulinomas are benign and can be surgically removed. This procedure is often performed laparoscopically, where the surgeon makes small incisions and uses specialised instruments to excise the tumour.