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Murray A. Falconer and Peter J. E. Wilson

for infantile hemiplegia in the light of the late results. Ann. R. Coll. Surg. , 1967, 41: 183–201. 7. Gros , C. , and Vlahovitch , B. L'hémisphérectomie cérébrale. Montpell. méd. , 1955 , 47 : 109 – 123 . Gros , C., and Vlahovitch , B. L'hémisphérectomie cérébrale. Montpell. méd. , 1955, 47: 109–123. 8. Hughes , J. T. , and Oppenheimer , D. R. Superficial siderosis of the central nervous system. A report on nine cases with autopsy. Acta neuropath. , 1969 . (In press.) Hughes , J. T

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Outcome 1 year after SAH from cerebral aneurysm

Management morbidity, mortality, and functional status in 112 consecutive good-risk patients

Allan H. Ropper and Nicholas T. Zervas

: Cerebral vasospasm with ruptured saccular aneurysm — the clinical manifestations. Neurosurgery 1 : 245 – 248 , 1977 Fisher CM, Roberson GH, Ojemann RG: Cerebral vasospasm with ruptured saccular aneurysm — the clinical manifestations. Neurosurgery 1: 245–248, 1977 4. Hughes JT , Oppenheimer DR : Superficial siderosis of the central nervous system. A report on nine cases with autopsy. Acta Neuropathol 13 : 56 – 74 , 1969 Hughes JT, Oppenheimer DR: Superficial siderosis of the central nervous system. A report on

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Ken R. Winston, Keasley Welch, John R. Adler and Giuseppe Erba

: Hemispherectomy for Sturge-Weber syndrome. Childs Brain 5 : 233 – 248 , 1979 Hoffman HJ, Hendrick EB, Dennis M, et al: Hemispherectomy for Sturge-Weber syndrome. Childs Brain 5: 233–248, 1979 15. Hughes JT , Oppenheimer DR : Superficial siderosis of the central nervous system. A report of nine cases with autopsy. Acta Neuropathol 13 : 56 – 74 , 1969 Hughes JT, Oppenheimer DR: Superficial siderosis of the central nervous system. A report of nine cases with autopsy. Acta Neuropathol 13: 56–74, 1969 16

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Keith G. Davies, Robert E. Maxwell and Lyle A. French

. Second, the ventricular system is lined with granular ependymitis consisting of a proliferative layer of fibroglia covering the ependyma with a layer of subependymal gliosis. This obstructs the aqueduct or exit foramina of the fourth ventricle. Third, in the subdural space there is superficial siderosis causing brown staining of the brain stem, cerebellum, and spinal cord. Essentially, the cavity appears to behave in the same way as a large subdural hematoma except that, unlike a subdural cavity, it communicates with the ventricles and CSF through a patent foramen of

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cerebral blood flow, glucose metabolism, and electrical activity in pediatric brain death Michael D. Medlock William C. Hanigan Robert P. Cruse November 1993 79 5 752 755 10.3171/jns.1993.79.5.0752 Superficial siderosis of the central nervous system: magnetic resonance imaging and pathological correlation Anna J. Janss Steven L. Galetta Andrew Freese Eric C. Raps Mark T. Curtis Robert I. Grossman John M. Gomori Ann C. Duhaime November 1993 79 5 756 760 10.3171/jns.1993.79.5.0756 Increased mitotic activity as a negative prognostic indicator in pleomorphic

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Anna J. Janss, Steven L. Galetta, Andrew Freese, Eric C. Raps, Mark T. Curtis, Robert I. Grossman, John M. Gomori and Ann C. Duhaime

of disease progression ranges from months 6, 7 to as much as 37 years, 13, 15 and may involve a subacute deterioration resulting in death. 6, 7, 14 Identification and removal of the source of bleeding is the focus of clinical management. The most common pathology associated with superficial siderosis is brain tumor (ependymomas, 1, 6, 13, 15 carcinomatosis of the leptomeninges due to gastric or breast cancer, 10, 13–15 oligodendroglioma, 5, 13, 15 pinealoma, 13, 15 and hemangioblastic meningioma, 12, 13, 15 ) followed by hemispherectomy, 3 aneurysms, 3

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chondrosarcoma Alok Ranjan Geeta Chacko Thomas Joseph Sushil M. Chandi May 1994 80 5 928 930 10.3171/jns.1994.80.5.0928 Superficial siderosis of the central nervous system after brachial plexus injury Virginio Bonito Cristina Agostinis Stefano Ferraresi Carlo Alberto Defanti May 1994 80 5 931 934 10.3171/jns.1994.80.5.0931 Neurosurgery at the Mount Sinai Hospital Jeffrey S. Oppenheim May 1994 80 5 935 938 10.3171/jns.1994.80.5.0935 History of the Journal of Neurosurgery, 1965–1980 Henry G. Schwartz May 1994 80 5 939 940 10.3171/jns.1994

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Virginio Bonito, Cristina Agostinis, Stefano Ferraresi and Carlo Alberto Defanti

S uperficial siderosis of the central nervous system (CNS) is a rare entity, consisting of the deposition of an iron-containing pigment (hemosiderin) in the leptomeninges and in the subpial layers of the CNS. 5 Clinically, this condition is characterized by slowly progressive symptoms and signs, including bilateral neurosensory hearing loss, ataxia, spastic paraparesis, somatosensory loss, and sphincter disturbances, with possible mental decay. The diagnosis of superficial siderosis may be suggested on obtaining xanthochromic cerebrospinal fluid (CSF) or a

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melanocytoma presenting with superficial siderosis of the central nervous system Shigeo Matsumoto Yoo Kang Shinichi Sato Yasuto Kawakami Yoshifumi Oda Manabu Araki Junichiro Kawamura Hiroya Uchida May 1998 88 5 890 894 10.3171/jns.1998.88.5.0890 Abscess formation within a parasagittal meningioma Mark B. Eisenberg Rolando Lopez Albert E. Stanek May 1998 88 5 895 897 10.3171/jns.1998.88.5.0895 Thoracoscopic microsurgical excision of a thoracic schwannoma Curtis A. Dickman Ronald I

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Shigeo Matsumoto, Yoo Kang, Shinichi Sato, Yasuto Kawakami, Yoshifumi Oda, Manabu Araki, Junichiro Kawamura and Hiroya Uchida

M eningeal melanocytoma is an uncommon primary pigmented lesion of the leptomeninges. This benign tumor often presents as an extraaxial mass and is difficult to differentiate radiologically and histologically from meningioma or schwannoma. 20 A review of the literature yielded 14 reported cases in which there was sufficient evidence to diagnose meningeal melanocytoma reliably. 2, 7, 8, 10, 13–16, 18–23 Superficial siderosis of the central nervous system (CNS) is a rare entity consisting of the deposition of hemosiderin in the leptomeninges and in the