leptomeninges

Meningioangiomatosis is a rare, benign, hamartomatous lesion involving the cerebral cortex and leptomeninges.

Although somewhat controversial, true hemangiomas of brain, spinal cord, and the leptomeninges do exist hut have been rarely reported.

Lipomyelomeningocele is an uncommon congenital anomaly, resulting from outpouching of spinal cord and its surrounding leptomeninges through the bony defect of spina bifida.