Which type of tumor is an adenoma?

An adenoma is classified as a benign epithelial tumor that arises from glandular tissues. These types of tumors typically originate in the epithelial cells that line the glands and can produce secretions, mimicking the function of the gland from which they derive. Being benign means that adenomas generally do not invade nearby tissues or metastasize to other parts of the body, which differentiates them from malignant tumors.

Understanding adenomas is crucial because they can sometimes cause complications depending on their location and size, even though they are non-cancerous. For instance, if they occur in the pituitary gland, they can affect hormone levels and potentially lead to various health issues. This highlights the importance of accurately identifying adenomas in medical practice to ensure appropriate monitoring and treatment.