Publications by authors named "Walter L Williamson"
Background: Intrasacral occult sacral meningoceles (OSM) are uncommon congenital lesions that rarely become symptomatic, even over a patient's life time.
Methods: We operated on six patients with symptomatic OSM diagnosed on MR studies (all six) and/or CT examinations (four cases).
Results: All six patients had uneventful postoperative recoveries.
Background: Thoracic spinal cord compression due to both ankylosing spondylitis (AS) and ossification of the ligamentum flavum (OLF) is rare.
Case Description: A 33-year-old male with AS presented with a paraparesis attributed to MR documented T9-T10 OLF/stenosis. He was successfully managed with a decompressive laminectomy; this resulted in marked improvement of his deficit.
Background: Popliteal artery pseudoaneurysms due to stab wounds are extremely rate. Even more infrequently, they can contribute to the compression of multiple peripheral nerves.
Case Description: A 23-year-old male, following a trivial stab wound, developed the delayed occurrence of a pseudoaneurysm of the popliteal artery.
Background: Myxopapillary ependymoma (MPE) with anaplastic features is extremely rare. There are very few such case reports in the medical literature.
Case Description: A 23-year-old female presented with lower back pain, and both urinary and fecal dysfunction.
Background: Pure sequestrated thoracic disc herniations secondary to a traumatic event are rare.
Case Description: Elderly male presented with the sudden onset of severe paraparesis following a fall. The MR showed a left-sided extruded disc at the T10-T11.
Background: Intramedullary mature teratomas (IMMTs) are rare. This is particularly true in the adult population.
Case Description: A 49-year-old female developed progressive paraparesis due to a T6 intramedullary mature teratoma with an exophytic component.
Background: Spontaneous spinal epidural hematomas (SEHs) due to the utilization of factor Xa inhibitors are rare.
Case Description: A 66-year-old female presented with a Brown-Sequard syndrome attributed to a cervical epidural hematoma secondary to the utilization of rivaroxaban, one of the factor Xa inhibitors. Following a cervical laminectomy for the evacuation of the hematoma, the patient completely recovered.
Background: Lumbar spinal stenosis (LSS) classically presents with intermittent neurogenic claudication. Rarely, however, it may cause unanticipated, unpleasant, involuntary, and transient penile erections without sexual stimulation along with urinary urgency and claudication.
Case Description: The authors present four males with LSS whose principal symptoms were intermittent neurogenic claudication and unanticipated erections while walking, accompanied by urinary urgency.
Background: There are only 20 reported cases of cervical isthmic spondylolisthesis in literature that have been surgically managed either anteriorly or posteriorly. Herein, we report such a case managed with circumferential fusion.
Case Description: A 27-year-old male became progressively quadriparetic due to cervical isthmic spondylolisthesis at the C6-C7 level.
Background: In a small percentage of children born with congenital hydrocephalus, enlargement of the head and the presence of ventriculomegaly may halt and ultimately stabilize the condition designated as arrested hydrocephalus. Arrested hydrocephalus in children is typically due to congenital aqueduct stenosis, which can be described appropriately as a stasis existing within the channel between the third and fourth ventricles. Os odontoideum (OO) is an uncommonly occurring pathology at the craniovertebral junction.
View Article and Find Full Text PDF