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Lipoma of the corpus callosum

Case report

Samuel S. Gerber and Reuben Plotkin

A lthough lipomas are found in most parts of the body, intracranial lipomas are extremely unusual. Rokitansky 14 was the first to describe lipoma of the corpus callosum in 1856; his case was found at autopsy. Sosman 15 in 1939 reported the first case diagnosed in a living patient. Review of the literature shows 85 such cases, including the case we are reporting here. Case Report This 35-year-old white man presented with a history of headaches for the past year, increasing in severity. At the time of presentation the headaches were disabling. He had

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Chordoma of the corpus callosum: case report

Lorenzo Rinaldo, David S. Priemer, Alexander O. Vortmeyer, Aaron A. Cohen-Gadol, Daniel J. Brat, Anita Mahajan, Caterina Giannini, and Terry C. Burns

C hordomas are rare neoplasms originating from notochordal remnants that typically occur along the axial skeleton. 26 Rostral to the craniocervical junction, chordomas are most commonly found within the bone of midline skull base structures, 42 although exclusively intradural chordomas have been previously reported. 1 In this paper we report an exceptionally rare case of a primary chordoma originating in the splenium of the corpus callosum. To the best of our knowledge, a chordoma in this location has not been previously described. Albeit extremely rare, this

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Postshunting corpus callosum swelling with depiction on tractography

Case report

Daniel T. Ginat, Sanjay P. Prabhu, and Joseph R. Madsen

C hanges in the appearance of the corpus callosum occur in 5%–17% of cases after successful but sudden ventricular CSF shunting. 1 , 4–6 The alterations in the corpus callosum that appear on imaging can be substantial, as demonstrated in this case report. We propose that the term “postshunting corpus callosum swelling” be used to describe this process, because it occurs in response to decreased pressure that may allow CSF to infiltrate the chronically stressed structure. In this report the DT imaging characteristics of this condition are depicted

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Agenesis of the corpus callosum: female monozygotic triplets

Case report

John R. Ruge and T. Simone Newland

A genesis of the corpus callosum is a congenital abnormality estimated to occur in one to three births per 1000. 9, 19 The etiology and pathogenesis of agenesis of the corpus callosum is unclear. Agenesis of the corpus callosum may occur as an isolated anomaly without apparent clinical effect, or more commonly, as part of a syndrome. 22 The group of defects most commonly associated with agenesis of the corpus callosum are the holoprosencephaly series. Associated cerebral abnormalities include porencephaly, encephalocele, microcephaly, pyramidal tract

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Partial agenesis of the corpus callosum simulating a neoplasm

Case report

Timir Banerjee and Martin P. Sayers

C omplete or partial agenesis of the corpus callosum has been reported by several authors in the past. 1, 2, 7, 9, 10 Carpenter and Druckemiller 1 in 1953 stated that the diagnosis of agenesis of the corpus callosum during life is made by pneumoencephalography and the usefulness of cerebral angiography remains to be established. Subsequently, several authors have reported the angiographic findings of agenesis of the corpus callosum simulating a tumor of this region. We are reporting a case in which partial agenesis of the corpus callosum simulated a tumor

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Giant interhemispheric cysts associated with agenesis of the corpus callosum

Koreaki Mori

G iant interhemispheric cysts are rare lesions which, until the advent of magnetic resonance (MR) imaging, were mainly diagnosed by computerized tomography (CT). Various types of cystic lesions occur in the interhemispheric area. Often they are associated with agenesis of the corpus callosum, but there is no uniformity in pathogenesis among previously reported cases. These cysts should be differentiated from one another, as the prognostic and therapeutic implications may differ. Four large interhemispheric cystic lesions presenting at four different

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Altered integrity of corpus callosum in generalized epilepsy in relation to seizure lateralization after corpus callosotomy

Po Ching Chen, Steven A. Messina, Eduardo Castillo, James Baumgartner, Joo Hee Seo, Holly Skinner, Elakkat D. Gireesh, and Ki Hyeong Lee

G eneralized-onset seizures are usually conceptualized as originating at some point within, and rapidly engaging, bilaterally distributed networks with no clear focus. 5 The corpus callosum, the largest commissure connecting the two cerebral hemispheres, is conventionally considered to be responsible for bilateral synchronization in generalized epilepsy. 20 Corpus callosotomy is a widely accepted and effective palliative procedure to mitigate drop attacks caused by bilateral synchronous epileptic discharges in patients with drug-resistant generalized epilepsy

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Primary demyelinating disease simulating glioma of the corpus callosum

Report of three cases

Kenneth G. Rieth, Giovanni Di Chiro, Laurence D. Cromwell, Paul E. McKeever, Paul L. Kornblith, Conrad V. Kufta, and A. Bernard Pleet

, 10 It should be noted that, particularly in the early stages of the disease, normal CT scans are frequently encountered. Focal cerebral space-occupying lesions in demyelinating disease are unusual, but have been reported in patients with progressive multifocal leukoencephalopathy, 8, 11 adrenoleukodystrophy, 8 and recently in a patient with multiple sclerosis. 13 In the presence of a mass lesion, it may be difficult to differentiate demyelinating disease from a neoplasm. We present three cases of primary demyelinating disease involving the corpus callosum and

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Gamma knife surgery for arteriovenous malformations involving the corpus callosum

Keisuke Maruyama, Masahiro Shin, Masao Tago, Hiroki Kurita, Shunsuke Kawamoto, Akio Morita, and Takaaki Kirino

A rteriovenous malformations of the corpus callosum comprise 8 to 9% of all cerebral AVMs, 1, 11 and frequently occupy extensive areas in the cerebral parenchyma, involving the anterior cerebral arteries or the vein of Galen. There have been several reports on surgical attempts to remove these lesions, but have resulted primarily in clarifying the limitations and the technical difficulty of performing microsurgery. 3, 12, 13 Despite recent advances, complete resection of AVMs in this region without damaging those adjacent critical structures is sometimes

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Surgical removal of corpus callosum infiltrated by low-grade glioma: functional outcome and oncological considerations

Hugues Duffau, Ihab Khalil, Peggy Gatignol, Dominique Denvil, and Laurent Capelle

A lthough still a matter of debate, numerous authors currently advocate surgery in the treatment of supratentorial LGGs. 9, 10, 16, 51, 64, 77, 82, 84, 95, 96 Nonetheless, it seems that glioma resection should be the most extensive possible to have a real impact on the natural history of this kind of tumor. 9, 16 Furthermore, it has been well demonstrated that gliomas migrate along myelinated fiber tracts of white matter, 6, 41, 42, 52, 59, 81, 108 in particular, with frequent invasion of the corpus callosum and thus with a risk of contralateral