A one-year-old female cat was unable to stand. Magnetic resonance imaging was performed, and an enlargement of the lateral, third, and fourth ventricles and syringomyelia were detected. The cat was diagnosed with an isolated fourth ventricle (IFV) with syringomyelia. The serum isoantibody test for the feline infectious peritonitis (FIP) virus was 1:3,200. After the cat died, a pathological exam...

Male 29 years, treated surgically for a traumatic fracture of L2, was referred to us about a year after for the onset of worsening paraparesis, anesthesia in his left arm and trunk, urgent incontinence, hyperhydrosis. An MRI of the spinal cord showed the presence of a holocord syrinx, extending to the filum terminale. The patient underwent surgery via L2 laminectomy, with lysis of the arachnoid...

Reported is a unique case of Chiari imalforma tion with syringomyelia and medullar hemorrhage, which became symptomatic 4 days after a craniocervical trauma when the patient was doing neck exercises. The patient manifested respiratory arrest, tetraparesis, and persistent lower cranial nerve dysfunction. Magnetic resonance imaging studies revealed a Chiari i ma!formation with a large cervicothor...

Five patients with syringomyelia were examined with a 3.5 kG nuclear magnetic resonance (NMR) imager. Syrinx cavities were visualized in all five cases, and image quality compared favorably with metrizamide computed tomography (CT). Axial images were optimal for identifying syrinx cavities, and sagittal views were useful in providing an overview of cord morphology and in examining the craniocer...

Intramedullary cystic lesions of the conus medullaris are rare. Although an extensive literature describes syringomyelia as being a frequent basis for cystic cervico-thoracic lesions it is apparent that this does not occur frequently in the lumbosacral region (Kirgis and Echols, 1949; Netsky, 1953; Rand and Rand, 1960; Love and Olafson, 1966). Poser (1956), in a review of 234 cases of syringomy...