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4.
Rev. inf. cient ; 99(5): 487-493, graf
Article in Spanish | LILACS, CUMED | ID: biblio-1139211

ABSTRACT

RESUMEN Se presentó el caso de un paciente de 49 años de edad, que acudió a la consulta de Medicina Interna del Hospital General Docente "Dr. Agostinho Neto" por perder unas 20 libras de peso en dos meses y presentar heces fecales con aspecto aparente a "borra de café". El examen físico reveló desnutrición ligera y mucosas hipocoloreas. El ultrasonido abdominal mostró en hipocondrio y flanco izquierdo una imagen hipoecogénica heterogénea polilobulada que midió 68x61 mm con aspecto de paquete adenomegálico. En la tomografía computarizada de abdomen se identificó una imagen con densidad entre 33 y 57 UH, de 100 x 80 mm, polilobulada en topografía del yeyuno, que con el estudio contrastado realzó hasta 67 UH con aspecto tumoral. Se realizó resección quirúrgica del tumor con anastomosis termino-terminal. La biopsia informó fibroleiomiosarcoma. Se concluye que el estudio de las imágenes resulta útil para el diagnóstico de esta enfermedad.


ABSTRACT A 49-year-old patient presented to the internal medicine consultation office at the "Dr. Agostinho Neto" General teaching Hospital because of weight loss (20 pounds) and black stools in a period of 2 months before the evaluation. The physical examination revealed mild malnutrition and hypochlorous mucous membranes. The abdominal ultrasound image in the left hypochondrium showed a heterogeneous - polylobate - hypoechogenic mass measuring 68 x 61 mm with appearance of an adenomelagia. Computed tomography (CT) scan of the abdomen revealed an image with a density of 33 and 57 Hounsfield units (HU), measured 100 mm by 80 mm, polylobulated in jejunum topography, which with the contrasted study enhanced up to 67 UH with a tumor appearance. Surgical resection of the tumor with termino-terminal anastomosis was performed. Tumor biopsy diagnosed leiomyosarcoma. It was concluded that the study of the images was useful for the diagnosis of this disease.


Subject(s)
Humans , Middle Aged , Sarcoma/diagnostic imaging , Jejunal Neoplasms/diagnostic imaging
10.
In. Hajjar, Ludhmila Abrahão; Kalil Filho, Roberto; Hoff, Paulo Marcelo Gehm. Manual de condutas em cardio-oncologia / Manual of conducts in cardiology and oncology. Rio de janeiro, Atheneu, 1ª; 2018. p.95-110.
Monography in Portuguese | LILACS | ID: biblio-875221
11.
Pesqui. vet. bras ; 37(10): 1113-1118, out. 2017. tab, ilus
Article in English | LILACS, VETINDEX | ID: biblio-895348

ABSTRACT

Feline injection site sarcoma is a malignant neoplasm with digitiform projections into muscular planes that are ill recognized during physical examination and may compromise tumor margin demarcation. This study compared tumoral size of 32 cats measured by different methods, and evaluated the CT density of 10 tumoral tissues (Hounsfield unit) based on histograms. Tumor axes were measured by physical examination and CT images. Larger craniocaudal axis measurements were obtained following multiplanar reconstruction of pre- and post-contrast CT images (p=0.049 and p=0.041 respectively); dorsoventral axis measurements taken from post-contrast CT images were also larger (p=0.010). Tumor volume estimates increased following contrast-enhancement. Histograms tended to produce two peaks: one in the fat and another in the soft tissue attenuation range. Multiplanar reconstructed post-contrast CT images provided clearer definition of tumor margins and more judicious determination of tumor size. A tendency of common FISS attenuation profile could be described.(AU)


O sarcoma de aplicação felino (SAF) é uma neoplasia maligna que geralmente apresenta projeções digitiformes para planos musculares adjacentes, dificilmente reconhecidos ao exame físico, o que pode comprometer a real identificação das suas margens. Este estudo comparou as dimensões tumorais de 32 SAFs mensurados por diferentes métodos (exame físico e por imagens de tomografia computadorizada) e avaliou a densidade tomográfica em unidades Hounsfield de 10 dessas neoplasias, com base em histogramas. As medidas no eixo craniocaudal foram maiores quando obtidas após reconstrução multiplanar de imagens tomográficas, tanto na fases pré como após administração de meio de contraste (p=0,049 e p=0,041, respectivamente). As medições tomográficas no eixo dorsoventral obtidas na fase pós-contraste também foram maiores, quando comparadas com as imagens pré-contraste (p=0,010). Estimativas do volume tumoral foram maiores após a fase contrastada. Os histogramas das densidades tumorais tenderam a produzir dois picos: o primeiro no intervalo de valores de densidade gordura e o segundo no intervalo correspondente a tecidos moles. As imagens tomográficas pós-contraste com reconstrução multiplanar demarcaram com mais clareza as margens do tumor e definiram de forma mais criteriosa o seu tamanho. Uma tendência de perfil de atenuação comum para o SAF pôde ser descrita com esse estudo.(AU)


Subject(s)
Animals , Cats , Sarcoma/veterinary , Sarcoma/diagnostic imaging , Cat Diseases/diagnostic imaging , Cats , Injection Site Reaction/veterinary , Cell Count
12.
Arch. cardiol. Méx ; 86(4): 335-349, oct.-dic. 2016. graf
Article in Spanish | LILACS | ID: biblio-838397

ABSTRACT

Resumen Los tumores cardiacos constituyen una patología poco frecuente (0.002-0.3%) en todos los grupos de edad, sin embargo tienen importancia clínica por el órgano que comprometen. Se clasifican en primarios (benignos o malignos) y secundarios (metástasis). De los primarios el mixoma es el tumor benigno más común, y el sarcoma representa la mayoría de las lesiones malignas. Las metástasis cardiacas son más frecuentes que los tumores primarios. Las manifestaciones clínicas de los tumores cardiacos son poco específicas y varían de acuerdo a su localización, tamaño y agresividad. El uso de tomografía computada multidetector (TCMD) y resonancia magnética (RM) nos ayuda a tener conocimiento de la localización, el tamaño, las relaciones anatómicas y el compromiso de las estructuras adyacentes; además, la RM ayuda a la caracterización tisular del tumor. Es por eso que los estudios en imagen cardiovascular no invasiva tienen un papel importante en la caracterización de estas lesiones y su diagnóstico diferencial entre ellas.


Abstract Cardiac tumors, are a rare pathology (0.002-0.3%) in all age groups, however, they have a clinic importance, due the affected organ. They are classified in primary (benign or malignant) and secondary (metastasis) types. Among primary type, mixoma, is the most common benign tumor, and sarcoma represents most of the malignant injuries. Cardiac metastasis are more frequent than primary tumors. Clinic effects of cardiac tumors are unspecific and vary according their location, size and agresivity. The use of Multidetector Computed Tomography (MDCT) and Magnetic Resonance Imaging (MRI) assist on the location, sizing, anatomical relationships and the compromise of adyacents structures, besides, MRI is useful for tissue characterization of the tumor. Due to the previous reasons, studies based on noninvasive cardiovascular imaging, have an important role on the characterization of these lesions and the differential diagnosis among them.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged , Aged, 80 and over , Magnetic Resonance Imaging , Cardiac Imaging Techniques , Multidetector Computed Tomography , Heart Neoplasms/diagnostic imaging , Rhabdomyoma/diagnostic imaging , Sarcoma/diagnostic imaging , Teratoma/diagnostic imaging , Myxoma/diagnostic imaging
13.
Article in English | IMSEAR | ID: sea-159509

ABSTRACT

Liposarcoma is one of the most common malignant mesenchymal neoplasms, comprising approximately 15% of all soft-tissue sarcomas. First described by “Virchow” in 1857, it has been extensively reported in the literature, although its incidence remains exceedingly rare in the head and neck region with an annual incidence estimated to be 2.5/1 million inhabitants in population-based studies. It is one of the most common malignant mesenchymal neoplasms, comprising approximately 15% of all soft-tissue sarcomas. It is a heterogeneous disease with distinct sub-entities presenting with differential clinical behavior. The purpose of this article is to report an additional case of liposarcoma of the buccal vestibule and to review the literature.


Subject(s)
Female , Head and Neck Neoplasms/diagnosis , Head and Neck Neoplasms/epidemiology , Head and Neck Neoplasms/diagnostic imaging , Humans , Liposarcoma/diagnosis , Liposarcoma/diagnostic imaging , Middle Aged , Neoplasms, Connective and Soft Tissue/diagnosis , Neoplasms, Connective and Soft Tissue/epidemiology , Neoplasms, Connective and Soft Tissue/diagnostic imaging , Review Literature as Topic , Sarcoma/diagnosis , Sarcoma/epidemiology , Sarcoma/diagnostic imaging
14.
Int. j. odontostomatol. (Print) ; 9(1): 31-35, Apr. 2015. ilus
Article in Spanish | LILACS | ID: lil-747474

ABSTRACT

Los sarcomas son neoplasias poco vistas en el territorio maxilofacial, donde la baja frecuencia de casos y los cambios de nomenclatura, han dificultado su estudio. Una de las variables de este tipo de lesiones corresponde a un tumor conocido como sarcoma pleomórfico indiferenciado, del cual se sabe muy poco pues se describe una incidencia de 1:1.000.000. Corresponde a un tumor maligno con características clínicas e imagenológicas de crecimiento invasivo y destructivo; la confirmación diagnóstica se realiza por medio de una biopsia en base al estudio histológico e inmunohistoquímico. Aparece principalmente en el tracto nasosinusal y su manejo terapéutico se basa en la cirugía con amplios márgenes de seguridad y radioterapia o quimioterapia según corresponda. No presenta metástasis locales pero si a distancia con gran afinidad por el pulmón. Se reporta un caso de sarcoma pleomórfico indiferenciado de alto grado de maxilar diagnosticado en la Unidad de Patología Oral y Maxilofacial del Hospital las Higueras de Talcahuano durante el año 2014, que a diferencia de la mayoría de los casos reportados, producto de su extensión, fue tratado con radioterapia paliativa. Además, se realizó una revisión de la literatura disponible en diversas bases de datos con lo cual se obtuvo información de casos ya reportados. Actualmente resulta difícil producto de la baja cantidad de casos descritos poder hacer proyecciones en cuanto a su pronóstico o evolución, sin embargo hay consenso de que el manejo interdisciplinario, diagnóstico precoz y la confirmación de este por medio de exámenes complementarios son fundamentales para su adecuado tratamiento.


Sarcomas are neoplastic lesions rarely observed in the maxillofacial region. Due to the few cases reported and to changes in nomenclature of these tumors their study has been difficult. One of the variants of this kind of lesion corresponds to a tumor currently known as undifferentiated pleomorphic sarcoma, which there is scarce knowledge of. In fact the incidence described is about 1:1.000.000. This one corresponds to a malignant tumor with image and clinical features as invasive and destructive growth, the confirmation of diagnosis is carried out by performing biopsy based on histologic and immunohistochemical studies. They appear mostly in the nose and sinusal tract. Its therapeutic management is based on surgery with wide security margins and radio or chemotherapy when warranted. No local metastases but distant ones are found and highly affined with lungs. We report a case of an advanced undifferentiated pleomorphic sarcoma diagnosed at the Oral and maxillofacial pathology unit of Hospital Las Higueras in Talcahuano at 2014, which in spite of most of the reported cases in literature; because of the extent it was treated with palliative radiotherapy. Also has been made review of the available literature in different databases with which information of the reported cases was obtained. Nowadays, due to the low number of cases described it is difficult to establish projections in terms of prognosis or evolution. However, there is consensus that interdisciplinary management, early diagnosis and confirmation with complementary exams are essential for an appropriate treatment.


Subject(s)
Humans , Male , Aged , Sarcoma/pathology , Mouth Neoplasms/pathology , Sarcoma/diagnostic imaging , Biopsy , Mouth Neoplasms/diagnostic imaging , Tomography, X-Ray Computed , Head and Neck Neoplasms/pathology
17.
Article in English | WPRIM | ID: wpr-183830

ABSTRACT

Here we report a case in a 41-year-old woman histologically proven cystic embryonal sarcoma of the kidney, with emphasis on the imaging findings and pathological features. A large lobulated solid mass in the cystically dilated pelvocalyceal region was accompanied with hydroureter as depicted on both ultrasound and contrast-enhanced CT images.


Subject(s)
Adult , Diagnosis, Differential , Female , Follow-Up Studies , Humans , Imaging, Three-Dimensional/methods , Kidney/diagnostic imaging , Kidney Neoplasms/diagnostic imaging , Neoplasms, Germ Cell and Embryonal/diagnostic imaging , Sarcoma/diagnostic imaging , Tomography, X-Ray Computed/methods
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