The Great Barrier Reef is a very special place! It is not one continuous reef, but made up of over 2900 reefs and 900 islands. It is the largest reef structure and marine park in the world.he Great Barrier Reef is a very special place! It is not one continuous reef, but made up of over 2900 reefs and 900 islands. It is the largest reef structure and marine park in the world.
A meningioma is a tumor that arises from the meninges â the membranes that surround your brain and spinal cord. Most meningiomas are noncancerous (benign), though rarely a meningioma may be cancerous (malignant).Some meningiomas are classified as atypical, meaning they're neither benign nor malignant but, rather, something in between.ost meningiomas are noncancerous (benign), though rarely a meningioma may be cancerous (malignant). Some meningiomas are classified as atypical, meaning they're neither benign nor malignant but, rather, something in between.
MRI image showing a typical meningioma tumor. A meningioma is a tumor that arises from a layer of tissue (the meninges) that covers the brain and spine. Meningiomas grow on the surface of the brain (or spinal cord), and therefore push the brain away rather than growing from within it.