The computed tomographic appearance of cerebral cysticercosis in adults and children.

Byrd, Sharon E.; Locke, George E.; Biggers, Samuel L.; Percy, Alan K.

doi:10.1148/radiology.144.4.7111730

Cited by 63 publications

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“…Both the C. cellulosae and the C. racemosus affect the subarachnoid space, being the latter more frequent 9 . The incidence of cysternal involvement is estimated at 3.5% of all neurocysticercosis cases 2 , being the third most common site 2 .…”

Section: Subarachnoid Neurocysticercosismentioning

confidence: 99%

“…Cysticercosis may involve the spinal space and/or the spinal cord in CSF less than 1% of the cases, being more frequent the involvement of the subarachnoid space than the spinal cord 2,9 . The forms observed are: intradural-extramedullary in 54% of the cases, intramedullary in 17% and association of intramedullary and intradural-extramedullary in 17%.…”

Section: Spinal Neurocysticercosismentioning

confidence: 99%

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Ununsual manifestations of neurocysticercosis in MR imaging: analysis of 172 cases

Amaral

Maschietto

et al. 2003

Arq. Neuro-Psiquiatr.

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-Purpose: The typical manifestations of neurocysticercosis are described widely in the literature. The purpose of this study is to demonstrate the uncommon presentations of different forms of neurocysticercosis in MR imaging. Method: A retrospective analysis of 172 cases of neurocysticercosis in MR studies was carried out over a period of 13 years. One hundred and four males and 68 females with a mean age of 32 ± 3.7 years were studied. The studies were performed on 1.5 T GE MR units and T1 was used before and after gadolinium injection, T2 and gradient-echo (T2*) sequences. Results: The authors divided the unusual manifestations of neurocysticercosis into: intraventricular, subarachnoid, spinal, orbital, intraparenchymatous, and reactivation of previously calcified lesions. The results obtained were: intraparenchymatous 95 cases (55.23%); intraventricular 27 cases (15.69%); subarachnoid 20 cases (11.63%); spinal 6 cases (3.49%); orbital 1 case (0.58%); reactivated lesion 1 case (0.58%); association of intraventricular and intraparenchymatous 12 cases (6.98%); association of subarachnoid and intraparenchymatous 6 cases (3.49%); association of subarachnoid and intraventricular, 4 cases (2.32%). Conclusion: MR imaging is a sensitive and specific method in the analysis of different forms of unusual manifestations of neurocysticercosis, which should appear in the differential diagnosis of parenchymal, ventricular, spinal, cisternal, and orbital lesions.KEY WORDS: cysticercosis, parasites, MRI, subarachnoid space. Manifestações incomuns na ressonância magnética da neurocisticercose: análise de 172 casosRESUMO -Objetivo: as manifestações típicas da neurocisticercose já são bem conhecidas. O papel deste estudo foi demonstrar os aspectos incomuns da neurocisticercose na ressonância magnética. Método: foram analisados 172 casos de ressonância magnética de neurocisticercose na Med Imagem num período de 13 (treze) anos em aparelhos GE de 1.5T Signa (Horizon, LX e CVI). Dos casos analisados, foram diversas as formas de apresentação, incluindo intraventricular, intraespinhal, cisternal, orbital, formas atípicas parenquimatosas (simulando tumores), forma miliar e evolução não usual (reativação). Conclusão: A ressonância magnética é método sensível e específico na avaliação das numerosas formas de apresentação atípica da neurocisticercose, as quais devem constar no diagnóstico diferencial de lesões intraventriculares, cisternais, orbitárias e parenquimatosas. PALAVRAS-CHAVE: cisticercose, parasitas, ressonância magnética, espaço subaracnóide.

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Section: Subarachnoid Neurocysticercosismentioning

confidence: 99%

Section: Spinal Neurocysticercosismentioning

confidence: 99%

Ununsual manifestations of neurocysticercosis in MR imaging: analysis of 172 cases

Amaral

Maschietto

et al. 2003

Arq. Neuro-Psiquiatr.

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“…Many authors have described the CT appearance of parenchymal lesions of NC related to the stage of the larva. [5][6][7][8][9] When the larva is alive, the cyst is well circumscribed, and does not exibit contrast enhancement; on the other hand, when the larva is dead, the lesion consists of a punctate calcification. Intermediate stages between the inert cyst and calcification are varied, but all represent various stages of granuloma formation.…”

mentioning

confidence: 99%

A Proposal for Classification of Neurocysticercosis

Carpio

Placencia

Santillán

et al. 1994

Can. j. neurol. sci.

108

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The complicated pathophysiological and immunological changes in the central nervous system of patients with neurocysticercosis produce a variety of signs and symptoms, which complicate the clinical and surgical management of this disease. A complete and objective classification is needed, to improve the medical approach as a whole. We studied 336 patients, in whom we classified neurocysticerosis according to criteria of viability and location of the parasite in the CNS: active form (37.2%) when the cysticercus is alive, transitional form (32.8%) when it is in the degenerative phase, and inactive form (30%) when the parasite is dead. This classification establishes the correlation between the different forms of neurocysticerosis and its clinical manifestations, and can be used for planning therapeutic strategies.Resume: La neurocysticerose : ebauche de classification. Les changements physiopathologiques et immunologiques complexes du systeme nerveux central chez les patients atteints de neurocysticercose donnent lieu a des signes et a des symptomes varies qui compliquent le traitement clinique et chirurgical de cette maladie. Nous avons besoin d'une classification complete et objective de la neurocysticercose afin d'ameliorer l'approche medicale globale. Nous avons etudie 336 patients atteints de neurocysticercose, dont nous avons classifie la maladie selon des criteres de viabilite et de localisation du parasite dans le systeme nerveux central : la forme active (37.2%) quand le cysticerque est vivant, la forme transitionnelle (32.8%) quand le parasite est en phase degenerative et la forme inactive (30%) quand le parasite est mort. Cette classification etablit la correlation entre les differentes formes de neurocysticercose et leurs manifestations cliniques et peut etre utilisee pour planifier des strategies therapeutiques.Can. J. Neurol. Sci. 1994; 21: 43-47 Human cysticercosis, or larval stage of the Taenia solium, is the most common parasitic illness that affects the central nervous system (CNS), especially in countries where the sanitary infrastructure is deficient. In Latin American countries, the frequency of neurocysticercosis (NC) is very high, reaching 3.6% in some regions, 1 and it is becoming increasingly common in developed countries, because of immigration from endemic regions. 2 We find it even in communities which do not eat pork and whose residents have not traveled to a country where T. solium infection is endemic.3 Since NC is a great public health problem, it is important to have a clear understanding of this disease in order to implement the necessary preventive measures.The natural history of the cysticercus in the CNS is, to date, not completely known; however, the CT scan in the last decade, and now the MRI, 4 have been very useful in the study of the biologic evolution of the cysticercosis in the CNS, especially in the brain parenchyma. Many authors have described the CT appearance of parenchymal lesions of NC related to the stage of the larva.5-9 When the larva is alive, the ...

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“…Neuroimaging studies [15][16][17] constitute a rather effective tool in patients suspected to have NC. Byrd et al 15 described the head CT findings in 30 adults and 15 children (age range, 6-17 years) with NC, who were classified in four groups according to cyst location: parenchymatous (11 children), ventricular-cisternal (1 child), ependymal-meningeal (1 child), and mixed (2 children).…”

Section: Discussionmentioning

confidence: 99%

“…Byrd et al 15 described the head CT findings in 30 adults and 15 children (age range, 6-17 years) with NC, who were classified in four groups according to cyst location: parenchymatous (11 children), ventricular-cisternal (1 child), ependymal-meningeal (1 child), and mixed (2 children). Children more commonly showed cystic (ring-enhancing) lesions or diffuse contrast-enhancing lesions, while the most common CT appearance in adults was one of calcified lesions.…”

Section: Discussionmentioning

confidence: 99%

Neurocysticercosis in a preschool-age child: case report

Vasconcelos

Ramos²,

Schwan³

et al. 2000

Arq. Neuro-Psiquiatr.

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-Neurocysticercosis is a frequent cause of epilepsy and other neurologic abnormalities in all age groups, however by virtue of its prolonged incubation period as well as young children's nutritional habits, it is rarely seen in preschool-age children. The objective of this study is to report the case of a 2 ½ year-old child who presented with new-onset seizures. Her diagnostic features, including neuroradiologic findings, are described and compared with the literature. No matter how young he or she may be, every child who presents with newonset seizures or other unexplained neurologic features and whose CT or MRI shows cystic lesions or contrastenhancing rounded lesions should raise a suspicion of neurocysticercosis.KEY WORDS: cysticercosis, CNS, childhood, CT, MRI. Neurocisticercose em uma criança pré-escolar: relato de casoRESUMO -A neurocisticercose é causa freqüente de epilepsia e outras manifestações neurológicas em todas as faixas etárias, mas devido ao seu período de incubação longo e aos hábitos alimentares das crianças pequenas, raramente é vista em pré-escolares. O objetivo deste estudo é descrever o caso de uma criança de 2,5 anos de idade que se apresentou com convulsões de início recente. As manifestações clínicas que levaram ao diagnóstico e os achados neurorradiológicos são descritos e comparados com a literatura. Até mesmo nas menores faixas etárias, toda criança que se apresentar com convulsões ou outras manifestações neurológicas inexplicadas e cuja TC ou RM mostrar lesões císticas ou lesões arredondadas captantes de contraste deve levantar a suspeita de neurocisticercose.

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The computed tomographic appearance of cerebral cysticercosis in adults and children.

Cited by 63 publications

References 0 publications

Ununsual manifestations of neurocysticercosis in MR imaging: analysis of 172 cases

Ununsual manifestations of neurocysticercosis in MR imaging: analysis of 172 cases

A Proposal for Classification of Neurocysticercosis

Neurocysticercosis in a preschool-age child: case report

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