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1.
Radiología (Madr., Ed. impr.) ; 65(5): 458-472, Sept-Oct, 2023. ilus
Artigo em Espanhol | IBECS | ID: ibc-225030

RESUMO

Los meningiomas son tumores que se originan en las vellosidades aracnoideas y que constituyen la neoplasia no glial más común en el sistema nervioso central. Las manifestaciones clínicas asociadas al meningioma dependen, fundamentalmente, de su localización. La ubicación en la convexidad cerebral es las más frecuente, especialmente en lóbulos frontales, manifestándose con cefalea, alteraciones motoras, convulsiones e, incluso, con trastornos neurocognitivos. Existen 15 subtipos histológicos de meningioma y 3 grados histológicos. Dentro de estos, los grados 2 y 3 tienen un peor pronóstico y una mayor tasa de recurrencia, así como un comportamiento radiológico, por lo general, más agresivo. Aunque existen algunas características de imagen que pueden permitir demostrar un subtipo concreto, el diagnóstico definitivo siempre requerirá la confirmación histológica/molecular.(AU)


Meningiomas are tumors that originate in the arachnoid villi and are the most common non-glial neoplasm in the central nervous system. The clinical manifestations associated with meningioma depend, fundamentally, on its location. The location in the cerebral convexity is the most frequent, especially in the frontal lobes, manifesting with headache, motor disturbances, seizures and even neurocognitive disorders. There are 15 histologic subtypes of meningioma and three histologic grades. Within these, grades two and three have a worse prognosis and a higher rate of recurrence, as well as a radiological behavior that is generally more aggressive. Although there are some imaging features that can suggest a specific subtype, the definitive diagnosis will always require histological/molecular confirmation.(AU)


Assuntos
Humanos , Masculino , Feminino , Meningioma/diagnóstico por imagem , Meningioma/etiologia , Espectroscopia de Ressonância Magnética , Tomografia Computadorizada Multidetectores , Meningioma/classificação , Radiologia/métodos , Sistema Nervoso Central , Neurofibromatose 2
2.
Radiologia (Engl Ed) ; 65(5): 458-472, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37758336

RESUMO

Meningiomas are tumors that originate in the arachnoid villi and are the most common non-glial neoplasm in the central nervous system. The clinical manifestations associated with meningioma depend, fundamentally, on its location. The location in the cerebral convexity is the most frequent, especially in the frontal lobes, manifesting with headache, motor disturbances, seizures and even neurocognitive disorders. There are 15 histologic subtypes of meningioma and three histologic grades. Within these, grades two and three have a worse prognosis and a higher rate of recurrence, as well as a radiological behavior that is generally more aggressive. Although there are some imaging features that can suggest a specific subtype, the definitive diagnosis will always require histological/molecular confirmation.


Assuntos
Neoplasias Meníngeas , Meningioma , Humanos , Meningioma/diagnóstico por imagem , Diagnóstico por Imagem , Radiografia , Prognóstico , Neoplasias Meníngeas/diagnóstico por imagem
5.
Radiologia (Engl Ed) ; 64(6): 495-496, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36402534

Assuntos
Radiologia , Radiografia
7.
Radiología (Madr., Ed. impr.) ; 61(2): 153-160, mar.-abr. 2019. tab
Artigo em Espanhol | IBECS | ID: ibc-185125

RESUMO

Objetivo: La utilización de un tapón de hidrogel reduce el número de neumotórax y la necesidad de tubos de drenaje pleural en las biopsias de pulmón guiadas por tomografía computarizada. Realizamos un estudio de coste-efectividad sobre su uso. Material y métodos: Se analizaron 171 biopsias de pulmón divididas en tres grupos: grupo 1 (n=22): punción aspirativa con aguja fina (PAAF) sin tapón de hidrogel; grupo 2 (n=89): PAAF con tapón, y grupo 3 (n=60): PAAF más biopsia con aguja gruesa (BAG) con tapón. Se calcularon costes totales (directos e indirectos) de los tres grupos. Se analizó el porcentaje de diagnósticos correctos, las ratios medias e incrementales y la opción más coste-efectiva. Resultados: Costes totales: grupo 1 = 1.261,28 + 52,65 = 1.313,93 Euros, grupo 2 = 1.201,36 + 67,25 = 1.268,61 euros, grupo 3 = 1.220,22 + 47,20 = 1.267,42 Euros. Porcentaje de diagnósticos correctos: grupo 1 = 77,3%, grupo 2 = 85,4% y grupo 3 = 95% (p = 0,04). Ratio medio de coste-efectividad: grupo 1 = 16,99, grupo 2 = 14,85 y grupo 3=13,34. Conclusiones: El grupo 3 fue la opción dominante, con la menor ratio media, lo cual demuestra que, en las biopsias de pulmón guiadas por TC, la opción más coste-efectiva es la realización de una PAAF y una BAG con la utilización del tapón de hidrogel deshidratado al final del procedimiento


Objective: Using a hydrogel plug decreases the number of cases of pneumothorax and reduces the need for pleural drainage tubes in CT-guided lung biopsies. We aimed to analyze the cost-effectiveness of using hydrogel plugs. Material and methods: We analyzed 171 lung biopsies divided into three groups: Group 1 (n=22): fine-needle aspiration cytology (FNAC) without hydrogel plugs; Group 2 (n=89): FNAC with hydrogel plugs; and Group 3 (n=60): FNAC plus core-needle biopsy (CNB) with hydrogel plugs. We calculated the total costs (direct and indirect) in the three groups. We analyzed the percentage of correct diagnoses, the average and incremental rations, and the most cost-effective option. Results: Total costs: Group 1 = 1,261.28 + 52.65 = euros 1,313.93; Group 2 = 1,201.36 + 67.25 = Euros 1,268.61; Group 3 = 1,220.22 + 47.20 = Euros 1,267.42. Percentage of correct diagnoses: Group 1 = 77.3%, Group 2 = 85.4%, and Group 3 = 95% (p = 0.04). Average cost-effectiveness ratio: Group 1 = 16.99; Group 2 = 14.85; and Group 3 = 13.34. Conclusions: Group 3 was the best option, with the lowest average cost-effectiveness ratio; therefore, the most cost-effective approach is to do FNAC and CNB using a dehydrated hydrogel plug at the end of the procedure


Assuntos
Humanos , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Técnicas de Fechamento de Ferimentos , Biópsia Guiada por Imagem/métodos , Curativos Hidrocoloides , Biópsia por Agulha Fina/métodos , Neoplasias Pulmonares/patologia , Avaliação de Custo-Efetividade , Tomografia Computadorizada por Raios X/métodos , Pneumotórax/prevenção & controle , Estudos Retrospectivos , Sensibilidade e Especificidade
8.
Radiologia (Engl Ed) ; 61(2): 153-160, 2019.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-30772002

RESUMO

OBJECTIVE: Using a hydrogel plug decreases the number of cases of pneumothorax and reduces the need for pleural drainage tubes in CT-guided lung biopsies. We aimed to analyze the cost-effectiveness of using hydrogel plugs. MATERIAL AND METHODS: We analyzed 171 lung biopsies divided into three groups: Group 1 (n=22): fine-needle aspiration cytology (FNAC) without hydrogel plugs; Group 2 (n=89): FNAC with hydrogel plugs; and Group 3 (n=60): FNAC plus core-needle biopsy (CNB) with hydrogel plugs. We calculated the total costs (direct and indirect) in the three groups. We analyzed the percentage of correct diagnoses, the average and incremental rations, and the most cost-effective option. RESULTS: Total costs: Group 1 = 1,261.28 + 52.65 = € 1,313.93; Group 2 = 1,201.36 + 67.25 = € 1,268.61; Group 3 = 1,220.22 + 47.20 = € 1,267.42. Percentage of correct diagnoses: Group 1 = 77.3%, Group 2 = 85.4%, and Group 3 = 95% (p = 0.04). Average cost-effectiveness ratio: Group 1 = 16.99; Group 2 = 14.85; and Group 3 = 13.34. CONCLUSIONS: Group 3 was the best option, with the lowest average cost-effectiveness ratio; therefore, the most cost-effective approach is to do FNAC and CNB using a dehydrated hydrogel plug at the end of the procedure.


Assuntos
Hidrogéis/economia , Biópsia Guiada por Imagem/economia , Pulmão/patologia , Pneumotórax/prevenção & controle , Idoso , Análise de Variância , Biópsia por Agulha Fina/efeitos adversos , Biópsia por Agulha Fina/economia , Biópsia com Agulha de Grande Calibre/efeitos adversos , Biópsia com Agulha de Grande Calibre/economia , Tubos Torácicos , Análise Custo-Benefício , Custos Diretos de Serviços , Feminino , Humanos , Biópsia Guiada por Imagem/efeitos adversos , Biópsia Guiada por Imagem/estatística & dados numéricos , Renda , Tempo de Internação , Masculino , Pneumotórax/etiologia , Estudos Retrospectivos , Fatores Sexuais , Tomografia Computadorizada por Raios X , Técnicas de Fechamento de Ferimentos/economia
9.
Radiología (Madr., Ed. impr.) ; 59(1): 40-46, ene.-feb. 2017. tab
Artigo em Espanhol | IBECS | ID: ibc-159695

RESUMO

Objetivo. Realizar estudio de costo-efectividad de la biopsia por aspiración al vacío (BAV) (9 G) guiada por estereotaxia vertical o ecografía comparada con biopsia con aguja gruesa (BAG) (14 G) y biopsia con arpón. Material y métodos. Analizamos 997 biopsias mamarias (181 BAV, 626 BAG y 190 arpones). Calculamos costes totales (directos e indirectos) de los tres tipos de biopsia. No calculamos costes intangibles. El efecto a medir fue el "porcentaje de diagnósticos correctos" obtenidos con cada una de las técnicas. Calculamos los ratios medios de los tres tipos de biopsias e identificamos la opción dominante más costo-efectiva. Resultados. Costes totales de BAG 225,09 Euros, de BAV 638,90 Euros y de biopsia con arpón 1780,01 Euros. Porcentaje de diagnósticos correctos globales con BAG 91,81%, BAV 94,03% y biopsia con arpón 100%, sin diferencias significativas (p=0,3485). En microcalcificaciones, los porcentajes de diagnósticos correctos fueron con BAG 50% y con BAV 96,77%, p<0,0001. En nódulos tampoco hubo diferencias significativas. El ratio medio costo-efectividad considerando todas las lesiones en conjunto, fue para BAG 2,45, BAV 6,79 y arpón 17,80. Conclusión. La BAG fue la opción dominante para el diagnóstico de lesiones mamarias sospechosas de malignidad en general. En el caso de las microcalcificaciones, el bajo porcentaje de diagnósticos de la BAG (50%) desaconsejan su uso y colocan a la BAV como técnica de elección; la BAV es, además, más costo-efectiva que el arpón, que es la otra técnica indicada para biopsiar microcalcificaciones (AU)


Objectives. To determine the cost effectiveness of breast biopsy by 9G vacuum-assisted guided by vertical stereotaxy or ultrasonography in comparison with breast biopsy by 14G core-needle biopsy and surgical biopsy. Material and methods. We analyzed a total of 997 biopsies (181 vacuum-assisted, 626 core, and 190 surgical biopsies). We calculated the total costs (indirect and direct) of the three types of biopsy. We did not calculate intangible costs. We measured the percentage of correct diagnoses obtained with each technique. To identify the most cost-effective option, we calculated the mean ratios for the three types of biopsies. Results. Total costs were Euros 225.09 for core biopsy, Euros 638.90 for vacuum-assisted biopsy, and Euros 1780.01 for surgical biopsy. The overall percentage of correct diagnoses was 91.81% for core biopsy, 94.03% for vacuum-assisted biopsy, and 100% for surgical biopsy; however, these differences did not reach statistical significance (p=0.3485). For microcalcifications, the percentage of correct diagnoses was 50% for core biopsy and 96.77% for vacuum-assisted biopsy (p<0.0001). For nodules, there were no significant differences among techniques. The mean cost-effectiveness ratio considering all lesions was 2.45 for core biopsy, 6.79 for vacuum-assisted biopsy, and 17.80 for surgical biopsy. Conclusion. Core biopsy was the dominant option for the diagnosis of suspicious breast lesions in general. However, in cases with microcalcifications, the low percentage of correct diagnoses achieved by core biopsy (50%) advises against its use in this context, where vacuum-assisted biopsy would be the technique of choice because it is more cost-effective than surgical biopsy, the other technique indicated for biopsying microcalcifications (AU)


Assuntos
Humanos , Feminino , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Biópsia/classificação , Biópsia/economia , Biópsia , Biópsia com Agulha de Grande Calibre/economia , Biópsia com Agulha de Grande Calibre , Biópsia Guiada por Imagem/economia , Mama , Análise Custo-Benefício/economia , Análise Custo-Benefício/organização & administração , Análise Custo-Benefício/normas , Avaliação de Custo-Efetividade , Estudos Retrospectivos , 28599
10.
Radiologia ; 59(1): 40-46, 2017.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-27865561

RESUMO

OBJECTIVES: To determine the cost effectiveness of breast biopsy by 9G vacuum-assisted guided by vertical stereotaxy or ultrasonography in comparison with breast biopsy by 14G core-needle biopsy and surgical biopsy. MATERIAL AND METHODS: We analyzed a total of 997 biopsies (181 vacuum-assisted, 626 core, and 190 surgical biopsies). We calculated the total costs (indirect and direct) of the three types of biopsy. We did not calculate intangible costs. We measured the percentage of correct diagnoses obtained with each technique. To identify the most cost-effective option, we calculated the mean ratios for the three types of biopsies. RESULTS: Total costs were €225.09 for core biopsy, €638.90 for vacuum-assisted biopsy, and €1780.01 for surgical biopsy. The overall percentage of correct diagnoses was 91.81% for core biopsy, 94.03% for vacuum-assisted biopsy, and 100% for surgical biopsy; however, these differences did not reach statistical significance (p=0.3485). For microcalcifications, the percentage of correct diagnoses was 50% for core biopsy and 96.77% for vacuum-assisted biopsy (p<0.0001). For nodules, there were no significant differences among techniques. The mean cost-effectiveness ratio considering all lesions was 2.45 for core biopsy, 6.79 for vacuum-assisted biopsy, and 17.80 for surgical biopsy. CONCLUSION: Core biopsy was the dominant option for the diagnosis of suspicious breast lesions in general. However, in cases with microcalcifications, the low percentage of correct diagnoses achieved by core biopsy (50%) advises against its use in this context, where vacuum-assisted biopsy would be the technique of choice because it is more cost-effective than surgical biopsy, the other technique indicated for biopsying microcalcifications.


Assuntos
Neoplasias da Mama/economia , Neoplasias da Mama/patologia , Análise Custo-Benefício , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Biópsia/economia , Biópsia/métodos , Biópsia por Agulha/economia , Feminino , Humanos , Pessoa de Meia-Idade , Estudos Retrospectivos , Vácuo , Adulto Jovem
11.
Radiología (Madr., Ed. impr.) ; 57(5): 434-444, sept.-oct. 2015. tab, ilus
Artigo em Espanhol | IBECS | ID: ibc-141049

RESUMO

La tuberculosis ha mostrado un resurgimiento en los últimos años, fenómeno que se ha atribuido a factores como el aumento de la migración y la epidemia del virus de la inmunodeficiencia humana. La tuberculosis pulmonar primaria se manifiesta desde el punto de vista radiológico con afectación parenquimatosa, linfadenopatías, derrame pleural o enfermedad miliar. En la forma posprimaria, el hallazgo radiológico más precoz son los nodulillos y las lesiones ramificadas centrolobulillares, que aumentan de tamaño y confluyen para dar consolidaciones parcheadas, mal definidas. La presencia de cavitaciones es muy característica de enfermedad activa. El objetivo de este trabajo es describir los hallazgos radiológicos de la tuberculosis pulmonar y sus complicaciones (AU)


No disponible


Assuntos
Adulto , Criança , Feminino , Humanos , Masculino , Tuberculose Pulmonar , Tuberculose Pulmonar/complicações , Radiografia Torácica/instrumentação , Radiografia Torácica/métodos , Tomografia Computadorizada Espiral/instrumentação , Tomografia Computadorizada Espiral/métodos , Tomografia Computadorizada Espiral , Radiografia Torácica/normas , Radiografia Torácica/tendências , Radiografia Torácica , Tomografia Computadorizada por Raios X/instrumentação , Tomografia Computadorizada por Raios X/métodos , Linfócitos T CD4-Positivos , Tuberculose Miliar/complicações , Derrame Pleural/complicações , Derrame Pleural
12.
Radiologia ; 57(5): 434-44, 2015.
Artigo em Espanhol | MEDLINE | ID: mdl-26074301

RESUMO

Tuberculosis has made a comeback in recent years. This upsurge has been attributed to factors such as increased immigration and the human immunodeficiency virus epidemic. Primary pulmonary tuberculosis manifests radiologically with parenchymal involvement, lymph node involvement, pleural effusion, and/or miliary disease. In post-primary tuberculosis, the earliest radiological sign is small nodules and branching centrilobular lesions that increase in size and coalesce to form ill-defined patchy consolidations; cavitations are very characteristic of active disease. The aim of this article is to describe the radiologic findings for pulmonary tuberculosis and its complications.


Assuntos
Tomografia Computadorizada por Raios X , Tuberculose Pulmonar/diagnóstico por imagem , Algoritmos , Humanos , Tomografia Computadorizada por Raios X/efeitos adversos , Tuberculose Pulmonar/classificação
13.
Rev. argent. radiol ; 78(2): 99-101, jun. 2014. ilus
Artigo em Espanhol | LILACS | ID: lil-778816

RESUMO

Los albinos tienen predisposición al padecimiento de determinados tipos de cáncer cutáneo, pero el melanoma no es común. Entre los pocos artículos que documentan su aparición en estos pacientes, la afección gastrointestinal por melanoma aparece con relativa frecuencia, ya sea en forma de tumor primario o metástasis. Se presenta el caso de una paciente mujer de 70 años con una lesión gástrica y otra intestinal, detectadas mediante tomografía computada. El estudio anatomopatológico fue compatible con el diagnóstico de melanoma amelanótico. Pese a su escasa incidencia en albinos, el melanoma es una opción que no puede descartarse. Es importante, además, revisar los diferentes componentes del tracto gastrointestinal ante la existencia (o no) de un melanoma primario conocido...


Assuntos
Feminino , Adulto , Albinismo , Melanoma , Metástase Neoplásica , Trato Gastrointestinal
14.
Rev. argent. radiol ; 78(2): 99-101, jun. 2014. ilus
Artigo em Espanhol | BINACIS | ID: bin-131255

RESUMO

Los albinos tienen predisposición al padecimiento de determinados tipos de cáncer cutáneo, pero el melanoma no es común. Entre los pocos artículos que documentan su aparición en estos pacientes, la afección gastrointestinal por melanoma aparece con relativa frecuencia, ya sea en forma de tumor primario o metástasis. Se presenta el caso de una paciente mujer de 70 años con una lesión gástrica y otra intestinal, detectadas mediante tomografía computada. El estudio anatomopatológico fue compatible con el diagnóstico de melanoma amelanótico. Pese a su escasa incidencia en albinos, el melanoma es una opción que no puede descartarse. Es importante, además, revisar los diferentes componentes del tracto gastrointestinal ante la existencia (o no) de un melanoma primario conocido.(AU)


Albinos are predisposed to suffer certain types of skin cancer, but not usually melanoma, with just a few reports documenting it .Gastrointestinal tract is a relatively frequent site of melanoma occurrence, weather as a primary tumour or metastasis. We report a case of a 70 year-old female patient who underwent a computed tomography where a gastric and a bowel tumor were found. The pathology study was compatible with the diagnosis of an amelanotic melanoma. Despite that the diagnosis of melanoma in albine patients is a rare finding, it must be considered. It is also important to search through the digestive system even if there is no primary melanoma known.(AU)

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