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1.
Medicina (B.Aires) ; 78(1): 47-49, feb. 2018. ilus
Article in Spanish | LILACS | ID: biblio-894548

ABSTRACT

El tumor fibroso solitario es raro. Si bien su localización más frecuente es la pleura, han sido informados algunos casos de ubicación retroperitoneal. Es difícil diferenciarlo imagenológicamente de otras neoplasias, por lo que casi siempre el diagnóstico es histológico. Dado que los tumores fibrosos solitarios tienen presentaciones clínicas muy diversas, una mejor compresión de la ubicación y sus características imagenológicas ayudaría a abreviar la lista de diagnósticos diferenciales. Comunicamos un tumor fibroso solitario de localización retroperitoneal cuyo diagnóstico fue confirmado por examen histológico.


The solitary fibrous tumor is uncommon. Even though it frequently locates in the pleura, a few cases have been reported in the retroperitoneum. Differentiation from other neoplasms is difficult, and therefore the diagnosis is always attained through histological examination. Although solitary fibrous tumors have variable clinical behaviors, a better comprehension of the location and its imaging characteristics would help to decrease the list of differential diagnoses. We report a solitary fibrous tumor located in the retroperitoneum whose diagnosis was confirmed by histological examination.


Subject(s)
Humans , Male , Aged , Retroperitoneal Neoplasms/diagnostic imaging , Congenital Abnormalities/diagnostic imaging , Solitary Fibrous Tumors/diagnostic imaging , Kidney/abnormalities , Kidney Diseases/congenital , Retroperitoneal Neoplasms/surgery , Congenital Abnormalities/surgery , Magnetic Resonance Imaging , Tomography, X-Ray Computed , Solitary Fibrous Tumors/surgery , Kidney/surgery , Kidney/diagnostic imaging , Kidney Diseases/surgery , Kidney Diseases/diagnostic imaging
2.
Arq. bras. oftalmol ; 80(3): 189-191, May-June 2017. graf
Article in English | LILACS | ID: biblio-888115

ABSTRACT

ABSTRACT Solitary fibrous tumor (SFT) is a rare mesenchymal spindle-cell neoplasm commonly found in the pleura; it is rare in the orbit and extremely rare in the lacrimal gland. We herein report a case of SFT of the lacrimal gland that mimicked a pleo morphic adenoma. We discuss the clinical, radiological, histopathological, and immunohistochemical findings that provided insight and rationale to accurately diagnose this case.


RESUMO Os autores relatam um caso de tumor fibroso solitário (TFS) de glândula lacrimal simulando um adenoma pleomórfico. O TFS é um raro tumor mesenquimal de células fusiformes, comumente encontrado na membrana pleural, raramente en contrado na órbita e extremamente raro na glândula lacrimal. Os autores discutem os achados clínicos, radiológicos, histológicos e imunohistoquímicos que são a chave para o correto diagnóstico desta rara entidade.


Subject(s)
Humans , Female , Adult , Orbital Neoplasms/pathology , Adenoma, Pleomorphic/pathology , Solitary Fibrous Tumors/pathology , Lacrimal Apparatus/pathology , Orbital Neoplasms/diagnostic imaging , Immunohistochemistry , Magnetic Resonance Imaging , Adenoma, Pleomorphic/diagnostic imaging , Tumor Burden , Diagnosis, Differential , Solitary Fibrous Tumors/surgery , Solitary Fibrous Tumors/diagnostic imaging , Lacrimal Apparatus/surgery , Lacrimal Apparatus/diagnostic imaging
3.
Rev. otorrinolaringol. cir. cabeza cuello ; 76(3): 325-330, dic. 2016. ilus
Article in Spanish | LILACS | ID: biblio-845634

ABSTRACT

El tumor fibroso solitario (TFS) es una neoplasia mesenquimal de células fusiformes infrecuente descrita inicialmente en la pleura pero con localización reconocida en otros sitios. El TFS de la glándula tiroides (TFST) es aun más raro. Se describe el caso de una mujer de 65 años de edad, con masa cervical de crecimiento progresivo, a tal punto que ya la masa se hacía notable en parte inferior de su cuello, siendo este el único síntoma narrado. La paciente presentaba una gran masa tiroidea en el lóbulo derecho con extensión intratorácica. Se practicó hemitiroidectomia derecha (paciente tenia historia previa de resección del lóbulo tiroideo izquierdo por lesión benigna) Total, además de toracotomía endoscópica por la extensión de la masa la cual en la tomografía contrastada, se originaba en el lóbulo tiroideo derecho y descendía paralelo a la columna dorsal desplazando a la tráquea y el esófago. La patología reportó un tumor de 15 centímetros, con células fusiformes y patrón de crecimiento hemangiopericítico sin pleomorfismo, atipia, mitosis o necrosis. Luego de practicar diferentes estudios y marcadores tumorales, de todos estudios fueron positivos CD34, Bcl2, CD99 y vimentina. Se diagnosticó tumor fibroso solitario de glándula tiroides. El nervio vago derecho fue lesionado en la cirugía, actualmente está en terapia de voz. Al momento actual casi seis meses luego de su cirugía, no se documenta recidiva tumoral.


Solitary fibrous tumor (SFT) is a rare mesenchymal neoplasm initially described as spindle cells in the pleura but recognized location elsewhere. The TFS thyroid gland (TFST) even infrequent. A case of a 65 years old woman with progressive growth of a right cervical mass without associated symptoms described other than cosmesis is described . The patient had a thyroid mass in the right lobe with intrathoracic extension. A right Hemi thyroidectomy and thoracotomy for the extent of the mass was performed. Pathology reported a 15 cm tumor with spindle cell and growth pattern hemangiopericitic without pleomorphism, atypia, mitosis or necrosis. Immunohistochemistry was positive for CD34, Bcl-2, CD99 and vimentin, making the diagnosis of solitary fibrous tumor of thyroid gland. The patient's right Vagus nerve was injured intraoperatively and she is currently under voice therapy. Currently now, almost six months after her surgery she is free of disease.


Subject(s)
Humans , Female , Aged , Solitary Fibrous Tumors/diagnostic imaging , Solitary Fibrous Tumors/pathology , Thyroid Neoplasms/diagnostic imaging , Thyroid Neoplasms/pathology , Goiter , Solitary Fibrous Tumors/surgery , Thyroid Neoplasms/surgery , Tomography, X-Ray Computed
4.
Rev. cuba. inform. méd ; 8(2)jul.-dic. 2016.
Article in Spanish | LILACS, CUMED | ID: lil-787232

ABSTRACT

En los últimos años la comunidad científica internacional ha dedicado considerables recursos a la investigación y desarrollo de sistemas de diagnóstico asistidos por ordenador, utilizados por los médicos en el proceso de diagnóstico. Se ha prestado especial atención en algunas áreas médicas, como las especialidades oncológicas, por los altos índices de mortalidad provocados por algunas enfermedades como el cáncer de pulmón. El diagnóstico temprano de este padecimiento puede reducir en gran medida estos indicadores y mejorar la calidad de vida de los pacientes. El objetivo que se pretende con el desarrollo de esta investigación, es la selección adecuada de un algoritmo de clasificación, para ser utilizado en la fase que lleva el mismo nombre como parte de un sistema de diagnóstico asistido por ordenador para la clasificación de nódulos pulmonares solitarios. Para la selección adecuada del algoritmo de clasificación, se realiza un experimento utilizando las herramientas Weka v3.7.10 y Matlab 2013. Para determinar cuál de las técnicas estudiadas arroja mejores resultados de rendimiento, se utilizó el mismo conjunto de datos para las fases de entrenamiento, prueba y validación del clasificador, disponible en la base de datos internacional The Lung Image Database Consortium Image Collection(AU)


In recent years the international scientific community has devoted considerable resources to research and development of systems for computer-aided diagnosis used by physicians in the diagnostic process. Special attention has been provided in some medical areas, such as oncology specialties, by high mortality rates caused by some diseases like lung cancer. Early diagnosis of this condition can greatly reduce these indicators and improve quality of life of patients.The objective pursued with the development of this research is the proper selection of a classification algorithm, to be used in the phase that has the same name, as part of a system of computer-aided diagnosis for classification of solitary pulmonary nodules. For the selection of the appropriate classification algorithm, an experiment was performed using the tools Weka v3.7.10 and Matlab 2013. To determine which of the techniques studied produces better performance results, the same data set was used for the phases of training, testing and validation of the classifier, available in the international database The Lung Image Database Consortium Image Collection(AU)


Subject(s)
Humans , Male , Female , Algorithms , Medical Informatics Applications , Software/standards , Lung Neoplasms/diagnostic imaging , Solitary Fibrous Tumors/diagnostic imaging
6.
Indian J Ophthalmol ; 2009 May-Jun; 57(3): 238-40
Article in English | IMSEAR | ID: sea-70587

ABSTRACT

A 32-year-old woman, three months pregnant, reported with the complaint of protrusion of the right eye for six months. She gave history of rapid protrusion of eyeball for the last two months along with the history of double vision for the last one month. Computer tomography (CT) scan revealed a well-defined mass lesion in the intraconal space of the right orbit which was excised through a lateral orbitotomy approach. Histological examination and immunohistochemistry revealed a solitary fibrous tumor, which showed a rapid progression in pregnancy.


Subject(s)
Adult , Exophthalmos/diagnosis , Female , Humans , Orbital Neoplasms/pathology , Orbital Neoplasms/diagnostic imaging , Orbital Neoplasms/surgery , Pregnancy , Pregnancy Complications, Neoplastic , Solitary Fibrous Tumors/pathology , Solitary Fibrous Tumors/diagnostic imaging , Solitary Fibrous Tumors/surgery , Tomography, X-Ray Computed
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