Neuroradiology 0028-3940

Katayama, Y.; Tsubokawa, T.; Kinoshita, K.; Himi, K.

doi: 10.1007/BF00596494pmid: 1407514

234 34 34 5 5 Y. Katayama T. Tsubokawa K. Kinoshita K. Himi Departments of Neurological Surgery and Radiology Nihon University School of Medicine Tokyo Japan Summary Blood-fluid levels within the cerebral parenchyma are observed more frequently on CT and MRI in traumatic intracerebral haematomas than in those of other aetiologies. The intraparenchymal blood-fluid interface can be formed without a fluid cavity. It is suggested that the blood-fluid levels represent layering of red blood cells within areas of contusion necrosis as well as extensive contusion oedema. The more extensive the damage to brain tissue, the more often blood-fluid levels formed. A poorer outcome can be therefore predicted when an intraparenchymal blood-fluid interface is seen.

Mendelsohn, D.; Levin, H.; Harward, H.; Bruce, D.

doi: 10.1007/BF00596495pmid: 1407515

234 34 34 5 5 D. B. Mendelsohn H. S. Levin H. Harward D. Bruce Department of Radiology University of Texas Southwestern Medical Center at Dallas Dallas Texas USA Division of Neurosurgery University of Texas Medical Branch Galveston Texas USA The Greenery Rehabilitation Center Dallas Texas USA Department of Neurosurgery University of Texas Southwestern Medical Center at Dallas Texas USA Mary Nell and Ralph Rogers MRI Center 5801 Forest Park Road 75235 Dallas TX USA Summary Thirty-four children who sustained moderate to severe closed head injury underwent magnetic resonance imaging (MRI). Eight (24%) had MRI evidence of corpus callosum injury, most commonly within the posterior body and splenium. In contradistinction to reports in adults, there was no definite relationship between callosal injury and lower initial Glasgow Coma Scale scores, nor was there a significantly higher incidence of primary brain-stem lesions, diffuse axonal shear injury or intraventricular hemorrhage. In none of these 8 children did the initial admission computed tomography show evidence of callosal injury. Callosal injuries on MRI are not necessarily a poor prognostic finding, the majority of the 8 children showing good functional recovery.

Udaka, F.; Sawada, H.; Seriu, N.; Shindou, K.; Nishitani, N.; Kameyama, M.

doi: 10.1007/BF00596496pmid: 1407516

234 34 34 5 5 F. Udaka H. Sawada N. Seriu K. Shindou N. Nishitani M. Kameyama Department of Neurology Sumitomo Hospital Osaka Japan Summary MRI was performed in 21 patients and single photon emission computed tomography (SPECT) with N -isopropyl- p - 123 I iodoamphetamine in 16 patients, to visualize upper motor neurone lesions in amyotrophic lateral sclerosis. T2-weighted MRI revealed high signal along the course of the pyramidal tract in the internal capsule and cerebral peduncle in 4 of 21 patients. SPECT images were normal in 4 patients, but uptake was reduced in the cerebral cortex that includes the motor area in 11.

Yoshikawa, H.; Yamada, K.; Sakuragawa, N.

doi: 10.1007/BF00596497pmid: 1407517

Aihara, M.; Tanabe, Y.; Kato, K.

doi: 10.1007/BF00596498pmid: 1407518

234 34 34 5 5 M. Aihara Y. Tanabe K. Kato Department of Paediatrics Yamanashi Medical College Yamanashi Japan Department of Neurology Chiba Children's Hospital Chiba Japan Summary Serial MRI of the brain of a female infant with Fukuyama type congenital muscular dystrophy (FCMD) is presented. Initial MRI revealed diffuse abnormal signal in the cerebral white matter extending peripherally. On follow-up studies, the abnormal signals disappeared or decreased from the posterior to anterior, and from central to peripheral. These changes in signal intensity correlate well with the process of myelination as demonstrated in histochemical studies. It appears that the abnormal signals in FCMD are caused by delayed myelination. When abnormal signal intensity is seen in the cerebral white matter of a developmentally delayed infant, serial MRI may be used to follow the course of the illness.

Hunter, J.; Youl, B.; Moseley, I.

doi: 10.1007/BF00596499pmid: 1407519

234 34 34 5 5 J. V. Hunter B. D. Youl I. F. Moseley Lysholm Department of Radiology National Hospital for Neurology and Neurosurgery Queen Square WC1N 3BG London UK Multiple Sclerosis NMR Research Unit Institute of Neurology Queen Square WC1N 3BG London UK 9, Mawthorne Place, # 7H 02114 Boston MA USA Summary The differentiation of Chiari malformation from intrinsic brainstem neoplasm in adults can be difficult. We report three patients presenting with brainstem signs, in whom midbrain abnormality was detected on computed tomography and interpreted as evidence of intrinsic tumour. Subsequent investigation by magnetic resonance imaging revealed evidence of Chiari I malformation in all three cases and a syrinx in two. The association of Chiari I with deformity of the midbrain or pons has not been described previously.

Melin, G.; Keller, M.

doi: 10.1007/BF00596500pmid: 1407520

234 34 34 5 5 G. I. Melin M. S. Keller Department of Diagnostic Imaging Yale University School of Medicine New Haven Connecticut USA Summary Choroid plexus lipomas (CPL) are known to be associated with pericallosal lipomas (lipomas of the corpus callosum — LCC). Twenty-six case have previously been reported. Approximately half of these lipomas are connected via the choroidal fissure (LCC-CPL); this connection is almost always bilateral. We present an unusual unilaterally connected LCC-CPL in a neonate.

Floris, R.; Pastore, F.; Silvestrini, M.; Vagnozzi, R.; Guazzaroni, M.; Giuffre, R.; Simonetti, G.

doi: 10.1007/BF00596501pmid: 1407521

234 34 34 5 5 R. Floris F. S. Pastore M. Silvestrini R. Vagnozzi M. Guazzaroni R. Giuffre G. Simonetti Department of Radiology 11 University of Rome Italy Department of Neurosurgery 11 University of Rome Italy Department of Neurology 11 University of Rome Italy Summary A large supracerebellar arachnoid cyst was associated with herniation of the cerebellar tonsils and deformity of the cervicomedullary junction in an adult. Magnetic resonance imaging showed partial restoration of normal anatomy following surgery and clinical improvement, which helped in the formulation of a etiopathogenetic hypotheses.