Somatostatinoma is a rare type of tumor that usually develops in the pancreas or the digestive tract. It produces excess amounts of somatostatin, a hormone that helps regulate various bodily functions, including the release of other hormones. This overproduction can lead to symptoms such as abdominal pain, weight loss, and diabetes. Diagnosis often involves imaging tests like CT scans or MRI to locate the tumor, along with blood tests to measure hormone levels. Treatment typically includes surgery to remove the tumor, and in some cases, medications may be used to manage symptoms and hormone levels.