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1.
J. vasc. bras ; 17(2): 136-140, abr.jun.2018.
Article in Portuguese | LILACS | ID: biblio-910704

ABSTRACT

O linfedema é a complicação mais frequente no pós-operatório de câncer de mama, podendo afetar diretamente as atividades diárias. O objetivo desse estudo foi verificar o uso do taping como forma alternativa/auxiliar de tratamento na redução do linfedema. Foi realizada uma revisão da literatura de artigos científicos indexados nas bases de dados PubMed, LILACS, MEDLINE, PEDro e Google Acadêmico, onde foram selecionados nove artigos científicos. Verificou-se que o uso do taping é uma técnica complementar na redução do linfedema, podendo ser uma forma alternativa de tratamento para a redução deste, apesar de não ser capaz de substituir a terapia compressiva multicamadas


Lymphedema is the most common complication during the postoperative period after surgery for breast cancer and can have a direct impact on daily activities. The objective of this study was to review the use of taping as an alternative/complementary treatment to reduce lymphedema. A literature review was conducted of scientific articles indexed on the PubMed, LILACS, MEDLINE, and PEDro databases and Google Scholar, and nine articles were selected. It was found that taping is a complementary therapy for reducing lymphedema, which may be used as an alternative treatment method, but cannot substitute multilayer compression therapy.


Subject(s)
Humans , Female , Athletic Tape/ethics , Breast Cancer Lymphedema/rehabilitation , Breast Neoplasms/rehabilitation , Lymphatic System/pathology
2.
Med. interna (Caracas) ; 34(1): 57-60, 2018. ilus
Article in Spanish | LILACS, LIVECS | ID: biblio-1008289

ABSTRACT

Los linfomas constituyen un grupo diverso de neoplasias malignas, que se originan del sistema linfático(1). Aproximadamente el 85% se agrupan dentro de los denominados Linfomas No Hodgkin (LNH). Los LNH constituyen un numeroso grupo de linfomas derivados de la transformación neoplásica de los linfocitos B, T y Células NK, provenientes de diversas zonas que comprometen los folículos linfáticos en los nódulos linfáticos o en el sistema linfoide extranodal(2). Las localizaciones extra ganglionares primarias representan más de 10% de los casos y los sitios más frecuentes comprenden estómago, intestino delgado, orofaringe, piel, hígado y cerebro; además de otras bastante raras como ano, corazón, músculos y encías. Los linfomas testiculares primarios son muy raros, representan aproximadamente el 5% de todas las neoplasias testiculares malignas, menos del 1% de los LNH y el 4% de los LNH extra nodales(3). Esta neoplasia constituye el tumor maligno testicular más frecuente en sujetos ancianos. La presentación clínica típica es una masa testicular unilateral acompañada en ocasiones de hidrocele y dolor agudo escrotal. A continuación presentamos un caso que requirió de la participación de múltiples especialidades de nuestra institución para un manejo conjunto y finalmente el paciente falleció(AU)


The lymphomas constitute a diverse group of malignant neoplasms, which originate from the lymphatic system(1). Approximately 85% are grouped into the so-called Non-Hodgkin's Lymphomas (NHL). NHL are a large group of lymphomas derived from the neoplastic transformation of B, T and NK cells of different areas with involvement of lymphatic follicles in the lymph nodes or the extranodal lymphoid system(2). The primary extraganglionic sites represent more than 10% of the cases and the most frequent sites include stomach, small intestine, oropharynx, skin, liver and brain; others, quite rare, are anus, heart, muscles and gums.Primary testicular lymphomas are extremely rare, accounting for approximately 5% of all malignant testicular neoplasms, less than 1% of NHL and 4% of extranodal NHL(3). This neoplasm constitutes the most frequent testicular malignant tumor in elderly subjects. The typical clinical presentation is a unilateral testicular mass, sometimes accompanied by hydrocele and acute scrotal pain. We present a case which required the participation of multiple specialties of our institution for management but the patient finally died(AU)


Subject(s)
Humans , Male , Middle Aged , Testicular Neoplasms/etiology , Lymphoma, Non-Hodgkin/pathology , Lymphatic System/pathology , Lymphocytes , Internal Medicine , Medical Oncology
3.
Korean Journal of Radiology ; : 21-31, 2015.
Article in English | WPRIM | ID: wpr-157430

ABSTRACT

Optical imaging techniques use visual and near infrared rays. Despite their considerably poor penetration depth, they are widely used due to their safe and intuitive properties and potential for intraoperative usage. Optical imaging techniques have been actively investigated for clinical imaging of lymph nodes and lymphatic system. This article summarizes a variety of optical tracers and techniques used for lymph node and lymphatic imaging, and reviews their clinical applications. Emerging new optical imaging techniques and their potential are also described.


Subject(s)
Humans , Contrast Media , Fluorescent Dyes , Lymph Nodes/pathology , Lymphatic System/pathology , Lymphography , Magnetic Resonance Imaging , Optical Imaging , Positron-Emission Tomography , Quantum Dots , Spectroscopy, Near-Infrared
4.
São Caetano do Sul; Yendis; 2009. 432 p. ilus.
Monography in Portuguese | LILACS, HSPM-Acervo | ID: lil-667320
5.
J. bras. patol. med. lab ; 44(3): 215-220, jun. 2008. ilus
Article in English | LILACS | ID: lil-495153

ABSTRACT

The discovery and the comprehension of lymphatic vessels suffered several historical delays and setbacks. The inherent anatomical problems slowed down the precise identification of the lymphatic system during the development of medical science. Gasparo Aselli, an Italian surgeon and anatomist, was the first to describe the lymphatic vessels in 1627 (De Lacteibus sive Lacteis Venis). However, most original descriptions that report the morphology of the lymphatic system in different organisms were done during the 19th and the 20th centuries. The recent identification of specific lymphatic vasculature molecular markers allows a more accurate identification and characterization of the lymphatic system evolution in different organs, as well as its role in different pathological conditions, including cancer. This study summarizes the current understanding of lymphangiogenesis in tumour progression, as well as it presents a review of the promising data regarding the prognostic value of lymphatic density and the use of therapeutic lymphangiogenic molecules.


A descoberta dos vasos linfáticos e sua compreensão enfrentaram uma série de atrasos e dificuldades históricos. As inerentes dificuldades anatômicas retardaram a identificação precisa da rede vascular linfática durante o desenvolvimento da ciência médica. Gasparo Aselli, um anatomista e cirurgião italiano, foi o primeiro a descrever os vasos linfáticos, em 1627 (De Lacteibus sive Lacteis Venis). Entretanto, a maioria das descrições originais que relatam a morfologia do sistema linfático nos diferentes organismos foi realizada depois, entre os séculos XIX e XX. A recente identificação de marcadores moleculares específicos à vasculatura linfática permite agora identificação e caracterização mais acuradas da evolução da rede linfática nos vários órgãos e em diferentes situações, inclusive no câncer. Esta revisão resume o conhecimento sobre a linfangiogênese na progressão tumoral, bem como apresenta uma síntese dos dados mais promissores em relação ao valor prognóstico da densidade linfática e da utilização das moléculas linfangiogênicas como alvo terapêutico.


Subject(s)
Humans , Animals , Lymphangiogenesis , Lymphatic System/anatomy & histology , Lymphatic System/blood supply , Lymphatic System/pathology , Endothelium, Vascular/growth & development , Immunohistochemistry , Biomarkers, Tumor , Neoplasm Metastasis/physiopathology , Prognosis , Swine/embryology
6.
JCPSP-Journal of the College of Physicians and Surgeons Pakistan. 2008; 18 (8): 515-516
in English | IMEMR | ID: emr-102931

ABSTRACT

Chyluria is an abnormal condition in which chyle appears in the urine because of a fistulous communication between the lymphatics and the urinary tract. It is not life-threatening and spontaneous regression is reported in 50% of cases. Lymphangiography has been the main imaging modality for localization of the site of fistula, but it is invasive and requires expertise. Lymphoscintigraphy using Tc-99m labelled colloid is a safe, non-invasive, reproducible technique, which bears less radiation exposure. A 67-year-old male presented with 7-month history of chyluria following a spinal surgery. Bilateral lower limb lymphoscintigram revealed sluggish lymph flow in the left lower limb and visualization of tracer in the left kidney consistent with lymphorenal fistula. Subsequent cystography revealed appearance of chylous urine from left ureter. Patient refused surgery


Subject(s)
Humans , Male , Technetium , Chyle , Urine , Lymphatic System/pathology , Kidney Diseases , Lymphography , Spine/surgery , Urologic Diseases/diagnostic imaging , Urologic Diseases/diagnosis , Radionuclide Imaging
7.
Radiol. bras ; 40(2): 87-92, mar.-abr. 2007. tab, ilus
Article in Portuguese | LILACS | ID: lil-455942

ABSTRACT

OBJETIVO: Descrever os achados gerais do linfoma em pacientes abaixo de 20 anos de idade e por subtipo histológico. MATERIAIS E MÉTODOS: Estudo retrospectivo do arquivo digital de tomografia computadorizada do Centro de Controle do Câncer do Hospital Universitário Pedro Ernesto da Universidade do Estado do Rio de Janeiro, no período de março de 2003 a julho de 2005. Dos 22 casos - 16 do sexo masculino e 6 do sexo feminino, com média de idade de 11,5 anos -, 12 eram do subtipo Hodgkin e 10 eram não-Hodgkin. RESULTADOS: Dos achados gerais, verificamos as linfonodomegalias mediastinais como o mais freqüente (59 por cento), com predomínio no grupo Hodgkin (75 por cento), seguido por hepatoesplenomegalia (50 por cento) e linfonodomegalias cervicais e retroperitoneais (27,3 por cento). No subtipo Hodgkin houve predomínio do acometimento linfonodal, em sucessivas cadeias, seguido pela hepatoesplenomegalia (50 por cento). Verificamos um caso de massa tonsilar unilateral, opacidade pulmonar em "vidro-fosco" e nódulos renais. No subtipo não-Hodgkin houve predomínio extranodal caracterizado por hepatoesplenomegalia (50 por cento), espessamento de alça intestinal (40 por cento), derrame pleural (30 por cento), nódulo pulmonar (20 por cento), ascite (10 por cento), derrame pericárdico (10 por cento) e lesões ósseas mistas (10 por cento). CONCLUSÃO: A tomografia computadorizada é de grande valia no diagnóstico, estadiamento e seguimento do linfoma, com achados de alerta como massa linfonodal, notadamente mediastinal, hepatoesplenomegalia, massa unilateral na tonsila e espessamento parietal de alça intestinal.


OBJECTIVE: To describe the general findings of lymphoma and their histological patterns in patients less than 20 years old. MATERIALS AND METHODS: Twenty-two cases (16 male and 6 female, mean age 11.5 years) from the digital archive of computed tomography at the Cancer Control Center of "Hospital Universitário Pedro Ernesto - Universidade do Estado do Rio de Janeiro", Rio de Janeiro, RJ, Brazil, were retrospectively analyzed in the period between March 2003 and July 2005. Of these 22 cases, 12 were Hodgkin's and 10 were non-Hodgkin's. RESULTS: Overall, mediastinal lymphadenomegaly was the most frequent finding (59 percent), with predominance in the Hodgkin's subgroup (75 percent), followed by hepatosplenomegaly (50 percent) and cervical and retroperitoneal lymphadenomegaly (27.3 percent). The Hodgkin's subgroup presented a prevalence of lymphadenopathy, in many lymph node chains, followed by hepatosplenomegaly (50 percent). One case was found with unilateral tonsillar mass, pulmonary ground-glass opacities, and renal nodules. In the non-Hodgkin's subgroup, the disease was predominantly extranodal, characterized by hepatosplenomegaly (50 percent), thickening of the intestinal wall (40 percent), pleural effusion (30 percent), pulmonary nodule (20 percent), ascites (10 percent), pericardial effusion (10 percent) and mixed bone lesions (10 percent). CONCLUSION: Computed tomography is an extremely useful method for detection, staging and follow-up of lymphomas, with alert findings like mediastinal lymphadenopathy, hepatosplenomegaly, unilateral tonsillar mass and thickening of intestinal wall.


Subject(s)
Humans , Male , Female , Child , Adolescent , Lymphoma, B-Cell , Lymphoma, T-Cell/diagnosis , Lymphoma/diagnosis , Lymphatic System/pathology , Brazil , Lymphoma/pathology , Retrospective Studies , Tomography, X-Ray Computed
8.
J. bras. pneumol ; 33(2): 229-233, mar.-abr. 2007. ilus
Article in Portuguese | LILACS | ID: lil-459296

ABSTRACT

A linfangiomatose, doença rara e de origem controversa, ocorre em indivíduos de todas as faixas etárias, predominando entre os mais jovens, sem predileção por sexo. Comumente cursa com envolvimento torácico, porém órgãos como ossos, baço e fígado podem ser acometidos. Histologicamente, o envolvimento pulmonar cursa com proliferação, anastomoses complexas e dilatação secundária do sistema linfático. Clinicamente, a apresentação é variável. Os achados radiográficos podem ser sugestivos e o diagnóstico é definido pela histologia. Relatamos dois casos da doença; uma das pacientes era oligossintomática e encontra-se em tratamento; na outra, a doença foi mais agressiva e o diagnóstico muito tardio, culminando em óbito.


Lymphangiomatosis, a rare diseases of controversial origin, occurs in individuals of any age, regardless of gender, but is predominantly seen in younger individuals. It often presents with thoracic involvement, although, the bones, spleen and liver can also be affected. Histologically, the pulmonar involvement includes proliferation, complex anastomoses and secondary dilatation of the lymphatic vessels. Clinically, the presentation is variable. Although radiographic findings can be suggestive of the disease, the final diagnosis is made histologically. We report two cases of lymphangiomatosis, both in females: one was oligosymptomatic and is being treated for the disease; the other had a more progressive form, was diagnosed quite late and ultimately died of the disease.


Subject(s)
Adult , Female , Humans , Lymphangioleiomyomatosis/diagnosis , Angiogenesis Inhibitors/therapeutic use , Biopsy , Diagnostic Imaging , Fatal Outcome , Immunohistochemistry , Interferon-alpha/therapeutic use , Lymphangioleiomyomatosis/drug therapy , Lymphangioleiomyomatosis/pathology , Lymphangioleiomyomatosis , Lymphatic System/pathology , Pleural Effusion
9.
Journal of Korean Medical Science ; : 740-745, 2007.
Article in English | WPRIM | ID: wpr-169938

ABSTRACT

Congenital pulmonary lymphangiectasis (CPL) is a rare, poorly documented disease, characterized by abnormal dilatation of pulmonary lymphatics without lymphatic proliferation. This disease is seen almost exclusively in infancy and early childhood. It can usually be divided into primary (congenital) and secondary forms. The primary form presents in neonates, and the patients mostly die due to the respiratory distress, shortly after birth. The authors experienced two cases of primary CPL in a 13-day-old male neonate and a one-day-old male neonate, showing prominent lymphatic dilatation in the septal, subpleural, and peri-bronchial tissue throughout both lungs. The latter case was associated with congenital cardiac anomaly including single ventricle. These are unique cases of CPL in Korea of which the diagnosis was established through post-mortem examination. Therefore, the authors report these two cases with primary CPL with a review of the literature.


Subject(s)
Humans , Infant, Newborn , Male , Lung/pathology , Lung Diseases/congenital , Lymphangiectasis/congenital , Lymphatic System/pathology
10.
Rev. Asoc. Méd. Argent ; 119(1): 12-15, 2006.
Article in Spanish | LILACS | ID: lil-431960

ABSTRACT

Ha sido estimado (WHO) que un 3 por ciento de la población mundial convive y padece un linfedema, entre los grados o estadios subclínico y la elefantiasis extrema. ¿Qué es el linfedema y cuál es su etiopatogenia? ¿Es un signo, un síntoma, una enfermedad? No hay duda de que el linfedema más frecuente aparece por una parasitosis. Las filariasis. Una obstrucción por una causal extrínseca del sistema linfático. Múltiples son las causas que reproducen esta situación, y el resultado, con consenso, se denomina linfedema secundario. Por oposición y no necesariamente por consenso, aparece el término linfedema primario, obstrucción funcional o anatómico por una causal intrínseca del sistema congénito, seguramente geneticamente condicionado. El término linfedema idiopático (gr) (espontáneo, de causa desconocida) aparece como una opción para definir el tema. En la medida que sea conocida la causa el termino idiopático no tiene sentido. Hoy son conocidas la mayoría de las causas pero no por qué se desencadenan. Si así fuera, todos los linfedemas tendrían tratamiento específico. Frente a una cascada de opinión y terminología se deben ordenar estos conceptos como ejercicio semántico para lograr un lenguaje común en un tema de alto impacto médico y psicosocial.


Subject(s)
Humans , Lymphedema/classification , Lymphedema/diagnosis , Lymphedema/etiology , Lymphedema/therapy , Lymphatic System/abnormalities , Lymphatic System/physiology , Lymphatic System/pathology , Pediatrics
11.
Kasr El Aini Journal of Surgery. 2005; 5 (1): 21-32
in English | IMEMR | ID: emr-72926

ABSTRACT

Study of morphometric changes occurring in hepatic blood and lymph vessels in different chronic liver lesions with portal hypertension including viral hepatitis [B and C], Schistosomiasis and hepatocellular carcinoma [HCC] on top of cirrhosis, and to find the relationship of these changes to liver fibrosis, portal hypertension and HCC, using a combination of immunohistochemical and computer-based methodology. After clinco-pathoilogical evaluation of human patients with chronic hepatic lesion associated with portal hypertension, the chronic vital hepatitis C [n = 19], B and C [n = 12], Schistosomiasis [n = 10] and HCC on top of cirrhosis [n = 9] and 10 non-hepatic patients as control have been studied. Morphometric assessment of the number and area of blood vessels and lymphatics as well as the percentage of hepatic fibrosis per tissue section, all were done using computer soft-ware [KS 400] on image analysis system and using a combination of immuno-histochemical computer-based methodology. Immuno-histochernical staining of blood vessels, for factor VIII and portal lymphatic for a smooth muscle actin were done using monoclonal antibodies. Hepatic fibrosis was stained by sirius-red. Portal tract area and the relative fibrosis per liver tissue section were significantly increased with increasing grade of hepatitis activity in the non malignant groups compared to the control cases, with high significance in Schistosomiasis hut in HCC insignificant fibrosis compared to other disease and to control groups. There was a significant increase in the number of blood vessels per portal tract in the disease groups, highly significant in Schistosomiasis and HCC compared to the control cases but the percent of blood vessel area was significantly reduced in HCC than Schistosomiasis. This angiogenic change was directly proportional with grades of hepatitis activity and esophageal varices as it was significant with grade III activity and histological grade of HCC. There was significant increase in the number of lymphatic vessels per portal tract in all diseased groups with highest significance in Schistosomiasis group compared to the control group. There was insignificant increase in number and significant increases of area of lymphatics in HCC. This lymphangiogenesis change was directly proportional with grades of hepatitis activity but insignificant in all groups of patients. The advancement of hepatic fibrosis and portal hypertension in chronic liver disease including Schistosomiasis and viral hepatitis [B and C] was associated with significant increase in the number of both portal blood and lymphatic vessels. There was highly significant increase in the surface area of lymphatic vessels in Schistosomiasis. There was marked angiogenesis in HCC. Further study of these factors could be a target for further work


Subject(s)
Humans , Male , Female , Hepatitis B, Chronic , Hepatitis C, Chronic , Schistosomiasis , Carcinoma, Hepatocellular , Chronic Disease , Blood Vessels/pathology , Hypertension, Portal , Portal System , Lymphatic System/pathology , Immunohistochemistry , Ultrasonography , Endoscopy
12.
J. vasc. bras ; 2(4): 313-317, dez. 2003. ilus
Article in Portuguese | LILACS | ID: lil-358737

ABSTRACT

Objetivo: sugerir um protocolo de estudo dos vasos linfáticos com o propósito de obter os dados necessários para uma melhor compreensão da morfologia e das alterações parafisiológicas e francamente patológicas do círculo linfático na patologia do linfedema, tanto de origem primária como secundária.Método: A primeira etapa do protocolo é a obteção do material, que pode ser um grupo de tecido fibroadiposo, em que estão envoltos os vasos linfáticos, ou um segmento isolado de coletor linfático. Após, segue-se uma série de etapas: fixação e inclusão do material, preparação de 11 lâminas com coloração histoquímica e imuno-histoquímica e, por último, leitura das lâminas em busca de alterações, desde os componentes dos vasos linfáticos até a matriz periadventicial.Resultados: Conforme o grupo de células predominante na parede do vaso e na matriz periadventicial, pode-se suspeitar de uma reação actínica, como, por exemplo, nos casos em que há muita fibrose e regressão das fibras contráteis ou, ainda, no caso de um linfedema crônico pós-cirúrgico, quando há predominância de um processo degenerativo da parede linfática.Conclusão: Para a realização de um estudo amplo dos vasos linfáticos em diversos laboratórios de anatomia patológica, faz-se necessária a criação de um protocolo para melhor compreensão desta patologia tão complexa.


Subject(s)
Humans , Lymphatic System/pathology , Lymphedema , Tissue Embedding
13.
Rev. ginecol. obstet ; 14(3): 123-125, jul.-set. 2003.
Article in Portuguese | LILACS | ID: lil-356946

ABSTRACT

O sistema linfatico e formado por vasos capilares, ductos coletores e linfonodos que recolhem o fluido tecidual intersticial e o...


Subject(s)
Humans , Female , Breast Neoplasms , Lymph Nodes , Lymphatic System/pathology , Lymphatic Metastasis/physiopathology
14.
Saudi Medical Journal. 2003; 24 (10): 1130-1132
in English | IMEMR | ID: emr-64459

ABSTRACT

Abdominal cystic lymphangioma is a very rare congenital tumor of lymphatic origin. It usually appears in the pediatric age and frequently presents with non-specific symptoms and deceptive signs causing, at times, diagnostic dilemmas. Ultrasonography and computer tomography imaging are considered the diagnostic modalities of choice. Two cases of mesenteric cystic lymphangioma, one presenting as perforated appendicitis and the other as recurrent gastritis, are reported. Infection in the first and volvulus in the second case is behind the mode of presentation. The diagnostic approach and treatment are described with emphasis on the operative tactic applied for upper jejunal resection. A high index of suspicion, accuracy and repeated physical examination and, most important, the liberal use of ultrasonography in all cases of unclear abdominal illness may contribute considerably to a correct diagnosis and decreased morbidity


Subject(s)
Humans , Male , Female , Lymphangioma, Cystic/surgery , Mesentery , Peritoneal Neoplasms/diagnosis , Peritoneal Neoplasms/surgery , Gastritis/diagnosis , Recurrence , Lymphatic System/pathology
15.
Journal of Veterinary Science ; : 81-84, 2001.
Article in English | WPRIM | ID: wpr-104749

ABSTRACT

The tissue distribution and cellular localization of viral antigens in three cattle with persistent bovine viral diarrhea virus (BVDV) infection was studied. In three cases, necropsy findings of oral ulcers, abmasal ulcers and necrosis of Peyer's patches were suspected have been caused by BVDV infection. Non-cytopathic BVDV was isolated from a tissue pool of liver, kidneys and spleen. Immunohistochemical detection of BVDV showed that BVDV antigens were detected in both epithelial and nonepithelial cells in all examined organs, including the gastrointestinal tract, liver, pancreas, lung, lymphatic organs (spleen, lymph nodes), adrenal gland, ovary, uterus, and the mammary gland. These findings support the hypothesis that animals with persistent BVDV infection spread BVDV through all routes, and that infertility in BVDV infection is associated with the infection of BVDV in the ovaries and uteri.


Subject(s)
Animals , Cattle , Female , Adrenal Glands/pathology , Antigens, Viral/isolation & purification , Bovine Virus Diarrhea-Mucosal Disease/pathology , Diarrhea Viruses, Bovine Viral/immunology , Digestive System/pathology , Immunohistochemistry/veterinary , Infertility, Female/virology , Kidney/pathology , Lung/pathology , Lymphatic System/pathology , Mammary Glands, Animal/virology , Ovary/pathology , Uterus/pathology
16.
Article in English | IMSEAR | ID: sea-63661

ABSTRACT

We report a woman with intestinal lymphangiectasia whose symptoms were wrongly attributed to pregnancy; the diagnosis was made in the postpartum period. She also developed alopecia and herpes zoster.


Subject(s)
Adolescent , Alopecia/diagnosis , Biopsy , Diagnostic Errors , Duodenoscopy , Duodenum/pathology , Female , Fetal Death/pathology , Herpes Zoster/diagnosis , Humans , Infant, Newborn , Intestinal Mucosa/pathology , Lymphangiectasis, Intestinal/diagnosis , Lymphatic System/pathology , Pregnancy , Pregnancy Complications/diagnosis
17.
In. Pinto, Leäo Pereira; Souza, Lélia Batista de; Freitas, Roseana de Almeida; Figueiredo, Cláudia Roberta Leite Vieira de; Galväo, Hébel Cavalcanti; Câmara, Maria Leonor Assunçäo Soares; Carvalho, Rejane Andrade de. Patologia básica: sinopse. Natal, EDUFRN, 1997. p.74-91.
Monography in Portuguese | LILACS, BBO | ID: lil-246579
19.
Patología ; 33(2): 77-82, abr.-jun. 1995. ilus, tab
Article in Spanish | LILACS | ID: lil-161937

ABSTRACT

El diagnóstico de enfermedad de Hodgkin (EH) en aspirados con aguja delgada (BAAD) de ganglios linfáticos, se basea exclusivamente en la identificación de células clásicas de Reed-Sternberg (R-S), y sus variantes y en la relación de éstas con el fondo reactivo. Por las características del material no existen criterios estructurales evaluables. Se han identificado casos de lesiones benignas y malignas que presentan como constituyente neoplásico, células que son morfológicamente indistinguibles de las de R-S o sus variantes. Este grupo de lesiones se evalúan mejor cuando se realiza inmunohistoquímica con anticuerpos contra CD 15, CD 30, CD 45, Pan T y Pan B. En años recientes, han sido publicados criterios citológicos que permiten clasificar a la EH en más de 70 por ciento de los casos. Con el objetivo de evaluar la reproducibilidad de dichos parámetros citológicos, identificamos en un período de cinco años, nueve aspirados diagnosticados como EH, en donde el material era adecuando. Todos los casos tenían corroboración histológica y a todos se les realizó estudio de inmunohistoquímica con anticuerpos contra CD 15, CD 30, CD 45, Pan T, Pan B. Unicamente en cinco de los nueve casos se pudo precisar el tipo de EH, cuatro como celularidad mixta y uno como predominio linfocítico. Tres aspirados no tenían suficientes células para realizar una aproximación porcentual objetiva siguiendo los criterios de Das y Cols. Uno de los casos mostró, además de las células de R-S, numerosas células linfoides atípicas que sugirieron el diagnóstico de linfoma anaplástica de células grandes, que fue corroborado posteriormente con estudio de inmunohistoquímica. La clasificación de EH en BAAD de ganglios linfáticos es poco reproducible. La correlación en la clasificación citológica e histológica fue de 33 por ciento en el presente estudio. Aunque el diagnóstico inicial de enfermedad de Hodgkin se puede realizar en el material obtenido por BAAD, siempre que sea posible, es recomendable obtener tejido linfoide para clasificar la enfermedad y realizar inmunohistoquímica en caso de ser necesario


Subject(s)
Adolescent , Adult , Middle Aged , Humans , Male , Female , Biopsy, Needle/statistics & numerical data , Hodgkin Disease/classification , Hodgkin Disease/diagnosis , Hodgkin Disease/pathology , Lymph Nodes/cytology , Lymph Nodes/pathology , Lymphatic System/cytology , Lymphatic System/pathology
20.
Rev. invest. clín ; 47(1): 35-41, ene.-feb. 1995. tab, ilus
Article in Spanish | LILACS | ID: lil-149533

ABSTRACT

Se presenta la experiencia del Departamento de Patología del Instituto Nacional de la Nutrición Salvador Zubirán en la interpretación de biopsias por aspiración con aguja delgada (BAAD) de ganglios linfáticos periféricos. Esta serie comprende 298 aspirados realizados a 288 pacientes entre enero de 1988 y diciembre de 1992. Se excluyeron aquellos aspirados constituídos por sangre, grupos de células estromales o con artificios por desecación (63 casos), y en los que no se pudo establecer correlación clínica ni histológica (56 casos). De los 179 casos restantes, en 137 se obtuvo correlación cito-histológica del diagnóstico emitido en el aspirado. En los otros 42 casos no se obtuvo corroboración histológica y la correlación se estableció con la respuesta al tratamiento y el seguimiento clínico. Los diagnósticos fueron divididos en benignos y malignos para facilitar el análisis estadístico. Se obtuvieron 70 (39 por ciento) aspirados con diagnóstico de lesiones benignas y 109 (61 por ciento) de lesiones neoplásicas malignas linfoides o metastácicas. Del primer grupo, el diagnóstico más frecuente fue el de hiperplasia inespecífica y en el segundo el de neoplasias epiteliales metastásicas. En 25 aspirados el diagnóstico cito-histológico fue discordante; de ellos, sólo seis casos fueron falsos negativos y considerados en el análisis estadístico. La sensibilidad fue de 95 por ciento, la especificidad de 100 por ciento, el valor predictivo positivo de 100 por ciento y el valor predictivo negativo de 91.4 por ciento. No se identificaron falsos positivos ni complicaciones. Se concluye que la BAAD de ganglios linfáticos periféricos es un método diagnóstico confiable, de bajo costo, sin complicacione y cuyo uso debe promoverse en nuestro medio


Subject(s)
Humans , Biopsy, Needle/instrumentation , Biopsy, Needle/statistics & numerical data , Lymphatic Metastasis/diagnosis , Lymphatic Metastasis/pathology , Lymphatic System/pathology , Histocytological Preparation Techniques/statistics & numerical data , Histocytological Preparation Techniques
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