Cavernoma

Cavernoma is also known ascerebral cavernous malformations (CCMs), cavernous hemangiomas or cavernous angiomas. They are deformed and enlarge blood vessels assembled into clusters or angiomas and can look like raspberries. Cavernomas can develop on the spinal cord, brain, and other sections of the nervous system or body, such as the eyes and skin. 

The length of cavernomas ranges from a few millimeters to several centimeters. Although the cavernoma can enlarge, the engorgement is not usually malignant. This means that it cannot spread or metastasize to other body parts. At times, the blood vessels cell lining seeps small blood amounts in the cavernoma or outside into the neighboring tissue. Re-bleeding risks can vary highly and are typically hard to predict precisely.