👉 Fibrillated is a medical term that describes a type of tumor, which can be both benign and malignant. It refers to a tumor with multiple layers or folds on its surface, often resulting from repeated cell division or growth. In cancer terms, it is also known as a "multifocal" tumor, meaning the tumor has grown in multiple areas of the body at once. This type of tumor can be difficult to treat and may require more advanced treatments such as chemotherapy or radiation therapy.