A case of neuromyelitis optica had strikingly increased numbers of thickened, hyalinized small blood vessels, which were associated with cystic degeneration in the cervical spinal cord and the optic chiasm. These findings support the contention that neuromyelitis optica is a clinical syndrome rather than a distinct nosologic entity.
Head controls provide an alternative means of computer access. This study determined whether neck movement limitations are associated with reduced performance with such head controls. This study also identified features of the cursor movement path that could aid in assessing computer access limitations. Fifteen subjects without disabilities and ten subjects… (More)
Computer head controls provide an alternative means of computer access for people with disabilities. However, a person's ability to use head controls may be reduced if his or her disability involves neck movement limitations. Software was developed which incorporates five methods of compensating for a user's neck movement limitation. This software will be… (More)
Although increased skeletal blood flow in the bone involved by Paget's disease is well described, spinal hemorrhage in association with that disease has not previously been reported. We report a patient with Paget's disease of bone who developed a subacute epidural hematoma of the lumbar spine.
The purpose of this study was to demonstrate outcome measures of one seating component--anterior trunk supports--when used by children with cerebral palsy during a functional activity. The functional activity was pressing a single switch to activate a computer software program. Seventeen children with a mean age of 9 years were included in the study.… (More)
Central nervous system disorders may cause obstructive sleep apnea, but this sleep-related breathing disorder is rarely associated with a structural abnormality of the medulla. We present a patient with obstructive apnea resulting from autopsy-proven syringobulbia-myelia.
Subependymomas are relatively unusual tumors with a distinctive histological appearance. They are generally considered to be benign, and they are often found incidentally at autopsy. Most are located intracranially, and the most common site of origin is the fourth ventricle. Only two cases of subependymoma of the spinal cord have been reported previously.… (More)
A case of multiple meningiomas confined solely to the cervical spinal canal in association with multiple bony abnormalities of the cervical spine is presented. The relationship of this entity to neurofibromatosis, whether the central type or a form fruste, is explored. It is suggested that multiple meningiomas unassociated with other central or peripheral… (More)