Linfoma ocular primario vs celulitis orbitaria en tiempos de COVID-19 / Primary ocular lymphoma vs orbital cellulitis in times of COVID-19

Los tumores sólidos neoplásicos de tejido linfoide se caracterizan por proliferación acelerada de la porción linforreticular del sistema retículo endotelial, su incidencia mundial es de 4/100,000 prevalente en féminas entre 50-70 años, de etiología desconocida, asociado a helicobacter pylori, epstein barr y VIH. Clínicamente están presentes los síntomas B: fiebre, sudoraciones nocturnas, pérdida de peso, prurito y astenia. ausentes en el caso que nos ocupa de una paciente femenina de 46 años de edad que acudió a consulta de oftalmología por aumento de volumen a nivel de anejos de ojo izquierdo, proptosis indolora y disminución de la visión, con diagnóstico inicial de celulitis orbitaria tratada ambulatoriamente sin resolución. Se administró antibioticoterapia intravenosa sin mejoría clínica, se realizaron estudios complementarios de imagen radiológica, ultrasonido, resonancia magnética con evidencia de imagen tumoral de crecimiento antero lateral, desplazamiento de globo ocular, diámetro mayor de 57,3 mm, de características isointensas heterogéneas, secuencia T1 y flair, erosión de pared interna de orbita y la biopsia excisional informó linfoma primario de anexo ocular orbitario tipo no-Hodgkin. El abordaje acucioso con estudios complementarios para descartar neoplasias orbitarias en pacientes con celulitis orbitaria o dacriocistitis de evolución tórpida es necesario en todo momento, independiente de las condiciones atípicas de pandemia por COVID-19 que dificultan su manejo(AU)

Solid neoplastic tumors of lymphoid tissue are characterized by accelerated proliferation of the lymphoreticular portion of the reticulum endothelial system, their worldwide incidence is 4/100,000 prevalent in females between 50-70 years of age, of unknown etiology, associated with helicobacter pylori, epstein barr and HIV. Clinically, symptoms B are present: fever, night sweats, weight loss, itching and asthenia, absent in the present case of a 46-year-old female patient who came to the ophthalmology office due to increased volume at the level of the appendages. of the left eye, painless proptosis and decreased vision, with an initial diagnosis of orbital cellulitis treated outpatiently without resolution. Intravenous antibiotic therapy was administered without clinical improvement, complementary radiological imaging studies, ultrasound, magnetic resonance imaging were performed with evidence of an anterolateral growth tumor image, ocular globe displacement, diameter greater than 57.3 mm, heterogeneous isointense characteristics, T1 sequence and flair, erosion of the internal wall of the orbit and the excisional biopsy reported primary non-Hodgkin type orbital annex lymphoma. A careful approach with complementary studies to rule out orbital neoplasms in patients with orbital cellulitis or dacryocystitis of torpid evolution is necessary at all times, regardless of the atypical conditions of a COVID-19 pandemic that make its management difficult(AU)

Trabalho rural associado a cânceres linfohematopoiéticos em hospital público de referência: estudo caso-controle, Ceará, Brasil, 2019-2021 / Rural labor associated with lymphohematopoietic cancers in a public reference hospital: a case-control study, Ceará, Brazil, 2019-2021 / Trabajo rural asociado a cánceres linfohematopoyéticos en un hospital público de referencia: estudio de caso control, Ceará, Brasil, 2019-2021

Trata-se de um estudo do tipo caso-controle pareado com o objetivo de verificar a associação entre ocupações e cânceres linfohematopoiéticos em um hospital público de referência no Estado do Ceará, Brasil, durante 2019-2021. O grupo caso foi constituído por pacientes hematológicos que apresentavam mieloma múltiplo, leucemias ou linfomas não Hodgkin, acompanhados pelo serviço social de uma unidade hospitalar de transplante de medula óssea (n = 114), enquanto indivíduos comparáveis de unidade hospitalar distinta constituíram o grupo controle (n = 114), formando pares 1:1. O diagnóstico foi efetuado por equipe médica e as variáveis foram aferidas por acesso aos registros hospitalares. Comparamos os grupos em regressão logística condicional bivariada e ajustada por região de residência. Entre os resultados, destacamos que o câncer de maior prevalência no grupo caso foi o mieloma múltiplo (43,9%), seguido pelas leucemias (43%) e por linfomas não Hodgkin (13,2%). Proporções de ocupações, zona de residência, abastecimento de água e Superintendência Regional de Saúde de residência apresentaram diferença estatisticamente significante entre os grupos caso e controle. Verificamos que trabalhadores rurais possuíam maiores chances de apresentar os cânceres estudados (ORbruto = 5,00, IC95%: 1,91; 13,06 e ORajustado = 3,38, IC95%: 1,20; 9,54), enquanto trabalhadores do comércio apresentaram menores chances (ORbruto = 0,26, IC95%: 0,10; 0,70 e ORajustado = 0,30, IC95%: 0,10; 0,88). Os achados deste estudo possibilitam reflexões sobre o processo de adoecimento dos trabalhadores rurais e refletem o potencial dos serviços de saúde em contribuir com investigações sobre exposições ocupacionais.

This is a paired case-control study that sought to verify the association between professions and lymphohematopoietic cancers in a public reference hospital in the State of Ceará, Brazil, during 2019-2021. Case group consisted of hematological patients with multiple myeloma, leukemias or non-Hodgkin lymphomas, monitored by the social service of a bone marrow transplant hospital unit (n = 114), whereas comparable individuals from a different hospital unit made up the control group (n = 114), forming 1:1 pairs. Diagnosis was performed by a medical team and the variables were measured by accessing hospital records. Group comparison was conducted using bivariate conditional logistic regression and adjusted by region of residence. Results show that multiple myeloma (43.9%), leukemias (43%) and non-Hodgkin lymphomas (13.2%) were the cancer with the highest prevalence in the case group. Proportions of jobs, area of residence, water supply and Regional Superintendence of Health showed statistically significant difference between the case and control groups. Rural workers were more likely to present the cancers studied (ORraw = 5.00, 95%CI: 1.91; 13.06 and ORadjusted = 3.38, 95%CI: 1.20; 9.54), whereas trade workers had lower odds (ORraw = 0.26, 95%CI: 0.10; 0.70 and ORadjusted = 0.30, 95%CI: 0.10; 0.88). The findings allow us to reflect on the process of illness among rural workers and illustrate the potential of health services to contribute to investigations on occupational exposures.

Se trata de un estudio del tipo caso control apareado con el objetivo de verificar la asociación entre ocupaciones y cánceres linfohematopoyéticos en un hospital público de referencia en el estado de Ceará, Brasil, durante el período 2019-2021. El grupo caso estaba formado por pacientes hematológicos que presentaban mieloma múltiple, leucemias o linfomas no Hodgkin, bajo seguimiento por parte del servicio social de una unidad hospitalaria de trasplante de médula ósea (n = 114), mientras que individuos comparables de otra unidad hospitalaria constituyeron el grupo control (n = 114), formando pares 1:1. El diagnóstico fue realizado por un equipo médico, y las variables se midieron accediendo a los registros hospitalarios. Comparamos los grupos en regresión logística condicional bivariada y ajustada por región de residencia. Entre los resultados, destacamos que el cáncer de mayor prevalencia en el grupo caso fue el mieloma múltiple (43,9%), seguido de las leucemias (43%) y los linfomas no Hodgkin (13,2%). Las proporciones de ocupaciones, zona de residencia, abastecimiento de agua y Superintendencia Regional de Salud de residencia presentaron diferencia estadísticamente significativa entre los grupos caso y control. Constatamos que los trabajadores rurales tenían más probabilidades de padecer los cánceres estudiados (ORcrudo = 5,00, IC95%: 1,91; 13,06 y ORajustado = 3,38, IC95%: 1,20; 9,54), mientras que los trabajadores del comercio presentaron menos posibilidades (ORcrudo = 0,26, IC95%: 0,10; 0,70 y ORajustado = 0,30, IC95%: 0,10; 0,88). Los hallazgos de este estudio permiten reflexiones sobre el proceso de enfermedad de los trabajadores rurales y reflejan el potencial de los servicios de salud para contribuir a las investigaciones sobre exposiciones ocupacionales.

Etiopathogenic, epidemiologic and clinical-therapeutic comparison of non-hodgkins lymphoma and kaposis sarcoma / Comparação etiopatogênica, epidemiológica e clinicoterapêutica de linfoma não hodgkin e sarcoma de kaposi

ABSTRACT Background: Non-Hodgkin's lymphomas (NHL) are primary neoplasms derived from lymphocytes, and Kaposi's sarcoma (SK) is a multicentric disease of viral etiology and is associated with HIV. Aim: To study the etiopathogenesis and clinical characteristics of NHL and KS, describing their mutual factors. Methods: This retrospective investigation was performed on 101 medical charts. The patients were studied according to their age, gender, and HIV-positivity, following the PRISMA guidelines. The characteristics of the tumors and comorbidities were analyzed according to their age and lymphatic metastasis. Results: The mean age of the patients ranged between 15-87 years for NHL and between 25-54 for KS, but the age of patients with NHL associated with HIV did not surpass 34 years. The ratio male: female was 1,8:1 for NHL, but only men presented KS. HIV-positivity was found in five patients with NHL and in 14 with KS. The stages of NHL were: I (21%), II (18,4%), III (26,3%), and IV (34,2%), but KS were found only at III (40%) and IV (60%) stages. The lymphatic metastases were positive in 62 patients NHL and in four with KS. HIV-positivity occurred in 60% of patients with NHL and in 50% with KS. Conclusion: The HIV seropositivity was revealed for most of patients during the NHL and SK propaedeutic and none of them present clinical manifestations of AIDS. NHL associated with HIV was found only in young patients. NHL and KS patients have similar epidemiological, clinical, and therapeutic characteristics.

RESUMO Racional: Os linfomas não Hodgkin (LNH) são neoplasias primárias derivadas de linfócitos e o sarcoma de Kaposi (SK) é doença multicêntrica de etiologia viral, ambas associadas ao HIV. Objetivo: Avaliar características clínicas dos LNH e SK, relacionando fatores etiopatogênicos mútuos. Métodos: Foram avaliados retrospectivamente 101 prontuários. Os doentes foram analisados quanto a idade, sexo e soropositividade para o HIV, de acordo com o PRISMA guidelines. Os tumores foram classificados por estadiamento, presença de linfonodos regionais invadidos e tipo celular. Resultados: A idade variou entre 15 e 87 anos para o LNH e 25 a 54 anos para o SK, mas a idade dos pacientes com LNH associado com o HIV não ultrapassou 34 anos. A proporção homem: mulher foi de 1,8:1 para o LNH, enquanto SK foi registrado apenas em homens. A soropositividade para o HIV ocorreu em cinco pacientes com LNH e 14 com SK. A invasão de linfonodos regionais foi positiva em 62 com LNH e quatro com SK. Os linfomas foram 27,9% de baixo grau, 17,4% de grau intermediário e 12,8% de alto grau. A soropositividade para HIV, foi diagnosticada durante a propedêutica do tumor em 60% dos pacientes com LNH e 50% dos com SK. Conclusão: A maioria dos pacientes portadores de HIV descobriram a soropositividade durante propedêutica para LNH e SK, sem manifestações clínicas de AIDS. Todos os pacientes com LNH associado com o HIV eram jovens. Pacientes com LNH e com SK apresentam características epidemiológicas, clínicas e terapêuticas semelhantes entre si.

Análise da incidência dos linfomas no município de São Paulo, 1997 a 2012 / Analysis of the incidence of lymphomas in the city of São Paulo

Introdução: Os linfomas abrangem um grupo heterogêneo de neoplasias originadas no sistema linfático, diferentes quanto à sua histologia, prognóstico e epidemiologia, embora possa haver grande número de aspectos clínicos comuns. De acordo com sua morfologia, dividem-se dois grupos: os linfomas Hodgkin (LH) e os linfomas não-Hodgkin (LNH). Objetivo: Avaliar a tendência temporal da incidência de linfomas no período de 1997 a 2012, identificando a influência de fatores como o sexo, a idade, o período e a coorte e nascimento. Metodologia: Trata-se de um estudo ecológico. Foram obtidas, do Registro de Câncer de Base Populacional de São Paulo (RCBP-SP), informações sobre todos os casos novos de linfomas no Município de São Paulo, diagnosticados no período de 1997 a 2012. Informações sobre o número de habitantes do Município foram obtidas online através do site do Departamento de Informática do SUS. Para avaliar a tendência da incidência de linfomas no decorrer do período, segundo sexo e faixa etária, foram ajustados modelos lineares generalizados (MLG). Para avaliar a influência da idade, do período de diagnóstico e das coortes de nascimento na tendência da incidência dos linfomas, foi utilizado o modelo idade-período-coorte (IPC). Resultados e conclusões: Dos 18.037 casos analisados, 20,5% eram do tipo LH e 79,5% do tipo LNH. Entre os casos de LH, 52,6% eram homens e 70,0% tinham entre 20 e 39 anos. A taxa de incidência de LH padronizada por idade, por 100 mil habitantes, variou de 5,0 em 1997 para 4,0 em 2012, entretanto, não foi detectada nenhuma tendência significativa na incidência ao longo do tempo (p>0,05). O risco de desenvolver LH foi maior no sexo masculino do que no feminino apenas na faixa etária de 0 a 14 anos (p0,05). O risco de desenvolver LH segundo a faixa etária apresentou um padrão etário bimodal. No sexo feminino, os maiores riscos ocorreram nas faixas de 20 a 39 e de 65 anos e mais e, no masculino, nas faixas de 15 a 19 e de 65 anos e mais. O modelo IPC apontou uma influência da coorte de nascimento na incidência de LH em mulheres: para aquelas nascidas antes de 1960, quanto mais antiga a coorte, maior o risco de LH; para as nascidas após 1960, o risco relativo permaneceu estável. Entre os casos de LNH, 51,6% eram homens e 77,4% tinham mais de 40 anos. A taxa de incidência de LNH padronizada por idade, por 100 mil habitantes, passou de 22,6 em 1997 para 17,0 em 2012. Foi detectada uma tendência de decréscimo na incidência de LNH de 1,7% ao ano em todas as faixas etárias, em ambos os sexos (p<0,001). O risco de desenvolver LNH aumentou continuamente com o avançar da idade, em ambos os sexos. O modelo IPC não detectou efeitos de período. Para os homens, as coortes mais velhas apresentam maior risco e, as mais jovens, menor risco. Para as mulheres nascidas antes de 1960 o comportamento foi semelhante ao dos homens, para as nascidas após 1960, o risco relativo permaneceu estável

Introduction: Lymphomas comprise a heterogeneous group of neoplasias originating in the lymphatic system, different in their histology, prognosis and epidemiology, although there may be a large number of common clinical aspects. According to their morphology, two groups are divided: Hodgkin\'s lymphomas (HL) and non-Hodgkin\'s lymphomas (NHL). Objective: To evaluate the temporal trend of the incidence of lymphomas in the period from 1997 to 2012, identifying the influence of factors such as sex, age, period and cohort and birth. Methodology: This is an ecological study. Information about all new cases of lymphomas in the city of São Paulo, diagnosed in the period from 1997 to 2012, were obtained from the São Paulo Population Based Cancer Registry. Information on the number of inhabitants of the Municipality were obtained online through the website of the SUS Department of Informatics. To evaluate the trend of lymphoma incidence during the period, according to sex and age group, generalized linear models (GLM) were adjusted. The age-period-cohort (APC) model was used to evaluate the influence of age, diagnosis period and birth cohorts on the trend of lymphoma incidence. Results and conclusions: Of the 18,037 cases analyzed, 20.5% were HL type and 79.5% NHL type. Among the cases of HL, 52.6% were men and 70.0% were between 20 and 39 years old. The age-standardized incidence rate of HL per 100,000 population ranged from 5.0 in 1997 to 4.0 in 2012, however, no significant trend in incidence over time was detected (p> 0.05). The risk of developing HL was greater in males than in females only in the age group 0 to 14 years (p 0.05). The risk of developing HL according to the age group presented a bimodal age pattern. In females, the highest risks occurred in the 20-39 and 65-year-olds, and in the male, in the 15-19 and 65 years and older ranges. The APC model pointed to an influence of the birth cohort on the incidence of HL in women: for those born before 1960, the older the cohort, the higher the risk of HL; for those born after 1960, the relative risk remained stable. Among the cases of NHL, 51.6% were men and 77.4% were over 40 years old. The age-standardized incidence rate of NHL per 100,000 population increased from 22.6 in 1997 to 17.0 in 2012. A trend of a decrease in the incidence of NHL of 1.7% per year was observed in all ranges in both sexes (p <0.001). The risk of developing NHL increased steadily with advancing age in both sexes. The APC model did not detect period effects. For men, older cohorts are at higher risk, and younger cohorts are at lower risk. For women born before 1960 the behavior was similar to that of men, for those born after 1960, the relative risk remained stable

Epidemiology and subtype distribution of lymphoid neoplasms from a single institution in Lebanon between 2010 and 2014

The 2008 WHO classification is the gold standard for classifying hematopoietic neoplasms. Our study reviewed 1256 cases between the years 2010 and 2014. It aimed to establish a descriptive status of lymphoma cases in Lebanon. Hodgkin lymphomas [HL] accounted for 21% of all cases whereas non-Hodgkin lymphomas [NHL] accounted for 79%. In NHL, mature B-cell neoplasms accounted for 85% and mature T-cell neoplasms accounted for 9%. For mature B-cell neoplasms, the majority of cases [48%] were diffuse large B-cell lymphomas [DLBCL]. Within T-cell lymphomas, anaplastic lymphoma [ALCL 40%] was the most prevalent. The distribution within subtypes confirmed the findings of two previous Lebanese studies. Our figures of HL are higher than in Eastern and Western countries. This could probably be related to EBV infection among other etiologies. Our NHL figures are close to the Western world. Westernization of the way of life of the Lebanese society could explain this result

Caracterización clínico-epidemiológica de los linfomas en un período de cinco años en Villa Clara / Clinical and epidemiological characterization of lymphomas in a five year-period in Villa Clara

INTRODUCCIÓN: Los linfomas de Hodgkin y no Hodgkin son neoplasias malignas derivadas de los componentes celulares del sistema inmune, en particular, de los linfocitos y de sus precursores. Constituyen un grupo muy heterogéneo con amplias diferencias clinicobiológicas, pronósticas y terapéuticas. OBJETIVO: Caracterizar algunas variables clínico - epidemiológicas en los linfomas. MÉTODOS: Se realizó un estudio descriptivo y longitudinal entre enero de 2006 y diciembre de 2010 que incluyó a todos los pacientes adultos atendidos en los hospitales Celestino Hernández Robau y Arnaldo Milián Castro, en Santa Clara, Villa Clara. RESULTADOS: Se evaluaron 388 pacientes, con un predominio de edades mayores de 40 años, del sexo masculino y color de la piel blanca. El linfoma no Hodgkin tuvo mayor frecuencia; los factores de riesgo que predominaron fueron pertenecer al sexo masculino y la presencia del virus de Epstein-Barr. En las tres cuartas partes de los pacientes, la localización principal fue ganglionar. De las variedades histológicas del linfoma de Hodgkin la más frecuente fue la esclerosis nodular, mientras que para los linfomas no Hodgkin, fue el folicular. El estadio con mayor número de pacientes fue el III-b para ambos tipos de linfomas. La tercera parte de los pacientes fallecieron; el mayor número correspondió a los linfomas no Hodgkin. CONCLUSIÓN: Los linfomas tienen una alta morbilidad y mortalidad en los adultos de la provincia de Villa Clara.

IINTRODUCTION: Hodgkin and non-Hodgkin lymphomas are considered malignant neoplasms derived from cellular components of the immune system, in particular, of the lymphocytes and their precursors. They constitute a very heterogeneous group with broad clinical and biological, prognostic and therapeutic differences. OBJECTIVE: To characterize some clinical and epidemiological variables in lymphomas. METHODS: A descriptive and longitudinal study was carried out from January, 2006 to December, 2010, which included all adult patients who were attended at «Dr. Celestino Hernández Robau¼ and «Arnaldo Milián Castro¼ Hospitals, in Santa Clara, Villa Clara. RESULTS: A number of 388 patients were evaluated, with a predominance of white male, aged over 40. Non-Hodgkin lymphoma was the most frequent; male sex and the presence of Epstein-Barr virus were identified as predominant risk factors. The main localization of lymphomas was ganglionated in the three- quarter parts of patients. Nodular sclerosing was the most frequent histological variety of Hodgkin lymphomas, while for non-Hodgkin lymphomas it was follicular. The higher number of patients had III-b stage for both types of lymphomas. The third part of patients died; the higher number corresponded to non-Hodgkin lymphomas. CONCLUSION: Lymphomas has a high morbidity and mortality in adults from Villa Clara province.

Peripheral T-cell lymphoma: Frequency and distribution in a tertiary referral center in South India.

Background and Aim: Peripheral T/NK-cell lymphomas are uncommon types of non-Hodgkin's lymphoma (NHL) with a higher frequency in Far East countries as compared to the West. This study was undertaken to ascertain the frequency and distribution pattern of peripheral T-cell lymphomas (PTCLs) diagnosed in a tertiary care center in South India. Materials and Methods: This retrospective study was carried out in Department of General Pathology, Christian Medical College, Vellore. The time period was for 2 years from 1 st January 2008 till 31st December 2009. All PTCLs were reviewed and classified according to the World Health Organization (WHO) 2008 classification. Results: Of a total of 1032 cases of NHL, 180 cases were PTCL, which accounted for 17.4% cases of all the NHLs. Of these, PTCL, not otherwise specified (PTCL, NOS) was the most common subtype (48 cases, 26.1%), followed by anaplastic large cell lymphoma (41 cases, 22.8%), mycosis fungoides (21 cases, 11.7%), angioimmunoblastic T-cell lymphoma (16 cases, 8.9%), subcutaneous panniculitis like T-cell lymphoma (15 cases, 8.4%), extranodal NK/T-cell lymphoma, nasal type (12 cases, 6.7%), and hepatosplenic T-cell lymphoma (10 cases, 5.6%). The most common primary site of presentation was nodal accounting for 42% followed by cutaneous (34%), upper aerodigestive sites (8.9%), spleen (6.7%), and gastrointestinal tract (GIT; 3.3%). Conclusions: This is the largest single study on PTCLs in India and we document that its frequency is higher than that reported in Western literature and previous Indian studies and almost similar to that reported in some Far East studies. The frequency of mycosis fungoides, subcutaneous panniculitis like T-cell lymphoma, and hepatosplenic T-cell lymphoma was higher than that reported in the World literature and previous Indian studies. The frequency of extranodal NK/T-cell lymphoma and angioimmunoblastic T-cell lymphoma was much lower than that reported in the Far East literature.

Spectrum of malignancies among HIV-infected patients in South India.

Introduction: The current study examines the spectrum of malignancies among HIV-infected South Indians enrolled in a clinical care program. Materials and Methods: We conducted a nested matched case-control study among 42 HIV-infected cases who developed cancer and 82 HIV-infected controls between 1998 and 2008 at a tertiary care HIV care program in South India. Results: The most common types of cancer included non-Hodgkin's lymphoma (38.1%), Hodgkin's lymphoma (16.7%), squamous cell carcinoma (14.3%), and adenocarcinoma (14.3%). The median duration of time from HIV infection to cancer diagnosis was 549 days [interquartile range (IQR): 58-2013]. The nadir CD4 cell count was significantly lower in cases compared to controls (134 cells/μl vs. 169 cells/μl; P = 0.015). Cancer patients were more likely to have a more advanced HIV disease stage at the time of cancer diagnosis compared to control patients (Stage C: 90.5% vs. 49.4%; P<0.0001). Significantly more cancer patients were receiving antiretroviral treatment relative to control patients at the time of cancer diagnosis (92.9% vs. 66.3%; P=0.001). Conclusions: HIV-infected patients who developed cancer had more advanced immunodeficiency at the time of cancer diagnosis and a lower nadir CD4 cell count. It is possible that with the continued roll-out of highly active antiretroviral therapy in India, the incidence of HIV-associated malignancies will decrease.

Epidemiología del linfoma con compromiso de cabeza y cuello en el Centro Asistencial Sótero del Río / Epidemiology of lymphoma of the head and neck in the Centro Asistencial Sótero del Río

Introducción: Los linfomas son la neoplasia hematológica más frecuente del adulto, ocupando el tercer lugar de las neoplasias de cabeza y cuello (CyC). Se distinguen dos tipos, el linfoma de Hodgkin (LH) y el linfoma no Hodgkin (LNH), constituyendo dos entidades clínicas separadas. Objetivo: Evaluar las manifestaciones de los linfomas en la región de CyC, analizando las diferencias de presentación y comportamiento entre en LH y el LNH. Material y método: Estudio retrospectivo de todos los casos de linfomas de CyC en el Centro Asistencial Dr. Sótero del Roo (CASR) entre los años 2005 y 2009, documentando específicamente presentación clínica, factores de riesgo, el tipo de linfoma, diagnóstico histológico, localización anatómica, etapificación al momento del diagnóstico, tratamiento administrado, sobrevida. Resultados: Se incluyeron 80 casos de pacientes con linfoma de CyC en el estudio, 16 (20 por ciento) con LH y 64 (80 por ciento) con LNH. Se encontraron diferencias estadísticamente significativas entre ambos para la edad de diagnóstico, el compromiso extranodal, compromiso de mediastino, presencia de síntomas B y sobrevida. Conclusión: En el CASR la presentación de los linfomas es similar a la reportada mundialmente con diferencias similares entre LH y LNH.

Introduction: Lymphomas are the most common hematologic neoplasia in the adult and the third most common neoplasias of the head and neck (CyC). There are two types of lymphoma: Hodgkin and non-Hodgkin lymphomas, which constitute two unique clinical entities. Aim: To evaluate the clinical manifestations of lymphomas in the CyC region, analizing the diferences between the clinical presentation and behavior of LH and LNH. Material and method: This is an retrospective study of all the cases of lymphoma of CyC in the Centro Asistencial Dr. Sótero del Río (CASR) between the years 2005 and 2009, describing specifically the clinical presentation, risk factors, type of lymphoma, histologic diagnosis, anatomical localization, etapification at diagnosis, treatment received and survival. Results: Eighty cases of lymphoma of the CyC were included, 16 patients (20 percent) with LH and 64 patients (80 percent) with LNH. We found statistically significant differences between both groups for their age at diagnosis, extranodal disease, mediastinal compromise, presence of "B" symptoms and survival. Conclusion: in the CASR the clinical presentation of lymphomas is similar to that reported in the international literature, maintaining the unique characteristics for LH and LNH.

Características epidemiológicas, clínicas y patológicas de los linfomas en el Hospital Nacional Cayetano Heredia del año 1998 al 2008 / Epidemiological, clinical, and pathologic characteristics of lymphoma cases in Cayetano Heredia National Hospital from 1998 to 2008

Objetivo: Conocer las características epidemiológicas, clínicas y patológicas de los pacientes con linfoma diagnosticados en el Hospital Nacional Cayetano Heredia. Material y métodos: Se realizó un estudio descriptivo, retrospectivo, tipo serie de casos de 433 pacientes portadores de linfoma del año 1998 al 2008. Resultados: El promedio de edad fue de 44,8 años, 60,04% eran de sexo masculino. El lugar de nacimiento y procedencia más frecuente fue Lima con 61,5% y 90% respectivamente. Los síntomas más frecuentes son la baja de peso y la presencia de linfoadenopatías (40,5% y 3,7% respectivamente). El 55,08% de los pacientes se encontraban en estadio clínico I û II. La localización más frecuente fue ganglionar (55,1%). Las localizaciones extraganglionares más frecuentes fueron: gastrointestinal (15,2%) y piel (10,8%). Se halló que el inmunofenotipo B fue de 57,8% de los linfoma no Hodgkin y el patrón histológico más común fue el linfoma de células grandes difuso (35,8%), enfermedad de Hodgkin fue el 14,08%. De los pacientes tratados, 78,12% tuvieron respuesta completa y parcial de la enfermedad. El tratamiento en la enfermedad de Hodgkin fue ABVD con 90,97% de respuesta completa y parcial. Solo se reportó que el 23,45% de los pacientes han fallecido al momento. Conclusiones: Los pacientes con linfoma atendidos en el Hospital Nacional Cayetano Heredia tienen características similares a lo reportado a nivel mundial.

Objective: To determine the epidemiological, clinical and pathological characteristics of lymphoma cases in Cayetano Heredia National Hospital. Material and methods: We conducted a descriptive and retrospective case series including 433 patients with lymphoma diagnosed from 1998 to 2008. Results: Average age of patients was 44.8 years, and 60.04% were male. Most frequent birthplace and living area was Lima, with 61.5% and 90% of all patients, respectively. Most frequent symptoms were weight loss and lymph node enlargement (40.5% and 3,7%, respectively). More than half of all patients (55.08%) were in I-II clinical stages. The most frequent location of the disease was in the lymph nodes (55.1%). Extranodal locations were the gastrointestinal tract (15.2%) and the skin (10.8%). The B immunophenotype corresponded to 57.8% o all non- Hodgkin lymphoma cases, and the most common histological type was diffuse large cell lymphoma (35.8%), and HodgkinÆs disease accounted for 14.08%. Of all treated patients, 78.12% had complete and partial response. Therapy for HodgkinÆs disease was ABVD, with 90.97% of all patients achieving complete and/or partial response. Only 23.45% of all patients were reported as dead. Conclusions: Lymphoma patients seen in Cayetano Heredia National Hospital have similar characteristics compared to was is reported in a worldwide basis.

Mortalidade por linfoma não Hodgkin em capitais da região sudeste e sobrevida de pacientes submetidos a transplante no Instituto Nacional do Câncer / Mortality from non-Hodgkin's capital in the Southeast and survival of transplant patients at National Cancer Institute

A mortalidade por linfoma não Hodgkin vem diminuindo em vários países, porém, para o Brasil, as estimativas apontam um crescimento em ambos os sexos. O objetivo deste estudo foi analisar a tendência da mortalidade por linfoma não Hodgkin em indivíduos com 20 ou mais anos, nas capitais da região Sudeste, entre 1980 e 2007. Utilizou-se como fonte de dados o Sistema de Informação sobre Mortalidade e o DATASUS. A tendência das taxas de mortalidade por linfoma não Hodgkin por faixas etárias foi analisada por meio de modelos de regressão polinomial. Foi observada tendência linear de incremento em Belo Horizonte e São Paulo para faixa etária de 60 ou mais anos. Ao analisar de forma separada os períodos 1980-1995 e 1996-2007, só se observou tendência de incremento no período inicial. Os resultados sugerem que o incremento observado entre 1980-2007 poderia ser resultante do crescimento das taxas entre 1980-95, já que, no último período, não foram observadas tendências estatisticamente significativas nessas cidades. A partir da década de 90, o transplante de células-tronco hematopoiéticas (TCTH) passou a ser utilizado de forma mais consistente no tratamento de pacientes com linfoma não-Hodgkin (LNH) e, entre as possíveis explicações para a redução da mortalidade por essa neoplasia, observada nas últimas décadas em diferentes países, encontram-se os avanços no seu tratamento. Realizou-se um estudo descritivo de sobrevida em uma coorte histórica de pacientes com LNH, de 18 ou mais anos de idade, submetidos ao primeiro TCTH em um hospital de referência em oncologia no Rio de Janeiro, entre janeiro de 1997 e maio de 2009. As informações do estudo foram obtidas através da análise dos prontuários médicos, utilizando-se instrumento elaborado especificamente para essa finalidade...

Mortality from non-Hodgkin’s lymphoma has decreased in many countries although for Brazil estimates indicate a growth in both sexes. The aim of this study was to analyze trends in mortality from non- Hodgkin’s lymphoma in individuals with 20 or more years in the capitals of the southeastern region ofBrazil between 1980 and 2007. Data were obtained through the National Information System on Mortalityand from the Brazilian Institute of Geography and Statistics. Trends of mortality rates for non-Hodgkin’slymphoma by age were analyzed by polynomial regression models. A linear trend of increment of the mortality was observed in Belo Horizonte and Sao Paulo for the age 60 years or older. When analyzed separately in two periods 1980-1995 and 1996-2007, a trend of increase was only observed in the initial period. These results suggest that the increment observed between 1980 and 2007 could be related toincreased mortality rates between 1980-95, as there were no statistically significant trends in these cities inthe last period. Since the 90's, hematopoietic stem cell transplantation (HSCT) is being used more consistently in the treatment of patients with non-Hodgkin lymphoma (NHL) and these advances are among the possibleexplanations for the reduction of mortality from this neoplasia, observed in recent decades in different countries. We conducted a descriptive study of survival in a historical cohort of patients with NHL, 18 or more years old, who underwent a first HSCT in a referral hospital in Rio de Janeiro, between January 1997 and May 2009. Study information was obtained through analysis of medical records, using aninstrument developed specifically for this purpose. We considered as the study’s outcomes: overall survival (in months), estimated from the date of transplantation until death; and disease-free survival (in months), estimated from the date of transplant until evidence of disease after transplantation...

Application of the World Health Organization classification in the study of nonhodgkin's lymphoma in western Saudi Arabia

The aim of this study was to analyze the clinical and histopathologic distribution of various types of non-Hodgkin's lymphoma [NHL] at King Abdulaziz University Hospital-Jeddah, using the World Health Organization classification [WHO] of lymphoid neoplasms and to compare our results with those reported in the literature. A hundred and nine patients with malignant NHL diagnosed over a 10-year period from January 1994 through 2004 were retrospectively studied clinically and histopathologically. They were classified using the WHO classification, and recorded in a structured form. Of the 109 patients with NHL, 42 [47.2%] were Saudi and 67 [75.3%] were Non-Saudi, with male to female ratio of 1.72:1. The mean age of the patients was 48 years, age range [12-93 years]. Immunologically, the percentage of NHL with B-cell and T-cell phenotype were 88 [80.7%] and 21 [19.3%] respectively. Diffuse large B-cell lymphoma was the most frequent histopathological diagnosis 50 [45.9%] followed by follicular lymphoma 11 [10.1%] and B-cell chronic lymphocytic leukemia/small lymphocytic lymphoma was the third most common histopathological subtype of non-Hodgkin's lymphoma 8 [7.3%]. Lymphoblastic T-cell was the predominant subtype among the T-cell non-Hodgkin's lymphoma 10 [9.2%]. The proportion of primary extranodal NHL was 20[18.3%] with the gastrointestinal tract being the commonest site in 12 of the cases. Prevalence of advanced clinical stages of the disease 58 [53.2%] were recognized. B symptoms were reported from 68[62.4%] of nodal, 11[10.1%] of extranodal NHL patients. The distribution of various types of Non-Hodgkin's lymphoma showed clinical and histopathological similarities and differences when compared using the WHO classifications with other Non-Hodgkin's lymphoma series from the region, Asian countries or the West. The age group [40-60] years seen commonly with nodal NHL while [50-80] years [older age group] present with extranodal NHL. Diffuse large B cell lymphoma represents the most common histologic subtype followed by follicular lymphoma. In contrast, T-lymphoblastic lymphoma was relatively more frequent compared with that of Western populations. Extranodal marginal zone B-cell lymphoma [MALT type] of the gastrointestinal tract accounted for majority of the primary extranodal lymphoma

obscure cause of leg edema, non-Hodgkin's lymphoma

A 25-year-old female having asymptomatic edema of unilateral leg was provisionally diagnosed as a case of psoas abscess. Later, she turned out to be a case of non-Hodgkin's lymphoma. This presentation is contrary to usual age and mode of presentation of non-Hodgkin's lymphoma

Linfoma testicular primario: estudio descriptivo: Instituto Especializado de Enfermedades Neoplásicas: Lima - Perú: 2006 / Primary testicular lymphoma: descriptive study: Instituto Especializado de Enfermedades Neoplásicas: Lima - Perú

El linfoma testicular es una enfermedad poco frecuente con características peculiares y un pronóstico pobre. Evaluamos en forma retrospectiva 32 pacientes con este diagnóstico estudiando sus características epidemiológicas, valores hematológicos, tipo histológico, lugares de metástasis, tratamiento recibido y tiempo de sobrevida. Así mismo comparamos nuestros resultados con los reportes internacionales, haciendo énfasis en la necesidad de estudios prospectivos para obtener mejores conclusiones.

Testicular lymphoma is a rare illness with peculiar characteristics but with a poor prognosis. We evaluated 32 patients retrospectively studying their epidemiologic characteristics, hematologic values, histological type, metastasis sites, the treatment given and the survival. We compared our results with international reports and we think that prospective studies are needed for better conclusions.

Linfoma em cabeça e pescoço: várias faces de um tumor / Lymphoma of the head and neck: many faces of a tumor

Os linfomas correspondem ao segundo grupo de neoplasias que mais frequentemente acometem a região da cabeça e pescoço, depois do carcinoma de células escamosas. A importância do tema se revela também na progressiva elevação da incidência desta neoplasia, particularmente no que diz respeito aos linfomas não Hodgkin. Entre os sítios extranodais na cabeça e pescoço, o maiscomum é o anel de Waldeyer, seguido por órbita e anexos, seios paranasais e cavidades nasais, glândulas salivares, cavidade oral, laringe e tireoide. Neste trabalho procuramos demonstrar osdiversos padrões de acometimento dos linfomas por meio de estudos de tomografia computadorizada e ressonância magnética, enfatizando os aspectos anatômicos e radiológicos de relevância, sobretudo em lesões extranodais. O conhecimento dos diversos padrões de manifestação destaentidade é de fundamental importância para os radiologistas, uma vez que os métodos de imagem desempenham papel indispensável no diagnóstico, estadiamento, monitoração do tratamento e detecção de recidiva.

The lymphomas correspond to the second most frequently group of neoplastic lesions occurring in the head and neck, after the squamous cell carcinoma. The importance of the theme is reinforced by its progressive increasing incidence, particularly regarding non-Hodgkin's lymphoma. Among the extra-nodal sites, themost common is the Waldeyer's ring, followed by orbit, paranasal sinuses and nasal cavities, salivary glands, oral cavity, larynx and thyroid. In this study we demonstrate several different patterns of head and neck lymphomas through computed tomography andmagnetic resonance imaging, emphasizing the anatomic and radiologicaspects of relevance in lesions. The knowledge of the several different presentation patterns in this disease is very important for the radiologists, particularly for those working with headand neck imaging, because radiology plays an indispensable role in the diagnosis, staging, treatment monitoring and recurrence detection.

Les lymphomes malins non hodgkiniens cervico-faciaux de l'enfant a Libreville

Nous avions comme objectif presenter les aspects epidemiologiques ; anatomopathologiques et therapeutiques des lymphomes malins non hodgkiniens (LMNH )cervico-faciaux de l'enfant a Libreville. Aussi avons-nous mene une etude retrospective de janvier 1991 a decembre 2004. Elle a concerne des enfants de moins de 16 ans ayant souffert d'un LMNH histologiquement confirme et ayant beneficie d'une prise en charge therapeutique. Nous avons trouve 17 garcons et 6 filles dont l'age moyen etait de 7;7 ans. La localisation tumorale cervico-faciale la plus frequente etait maxillaire. Le type histologique le plus rencontre a ete le lymphome de. Burkitt soit 17cas sur 23. Tous les patients ont ete traites par chimiotherapie et 6 patients ont survecu apres 3 ans; 5 apres 5. Nos resultats n'ont pas ete differents de ceux publies dans la sous-region. La constance a ete la non accessibilite des medicaments specifiques a cause de leur cout eleve

Linfomas asociados a infección por virus de inmunodeficiencia humana en un complejo hospitalario de la Región Metropolitana, Chile: 1990-2002. Reporte de 14 casos y revisión / Lymphomas and HIV infection in a reference hospital of Santiago, Chile: 1990-2002: Report of 14 cases and review

The association of HIV infection and lymphoma in patients attending at the South Health Metropolitan Reference Centre is presented. Objective: to analyse its incidence, clinical and pathologic manifestations, treatment and outcome. Period of study: January 1990 to December 2002. Results: 14 cases were detected, 10 non Hodgkin lymphoma patients (7 with high malignancy and 50 percent in stages III-IVB) and 4 with Hodgkin lymphoma (3 with mixed cellularity, 2 in stage IVB). The annual incidence was 0.68 percent. Ten patients were classified under stage C3 of AIDS CDC criteria, the mean CD4 count was 139 cells/mm³ and mean CV was 5,32 log. Eighty six percent of patients presented with unique or multiples lymphonodes, with predominance of advanced lymphoma stage. Conventional CHOP chemotherapy was the treatment for high risk and extended non Hodgkin lymphomas and for extended Hodgkin lymphomas the ABVD protocol was administered. Six patients received antiretroviral therapy, 4 simultaneously with chemotherapy. Global mortality in this series was 71 percent, attributable to tumor disease per se or to sepsis. Four patients survived (18 to 50 months) in complete remission, 2 non Hodgkin lymphomas and 2 Hodgkin lymphomas. The low incidence of lymphoma and AIDS association and the high frequency of lymphomas with localized or generalized lymphonodes in this series are remarkable.

Se revisó la asociación de linfoma e infección por VIH en un complejo hospitalario de la Región Metropolitana Sur de Santiago de Chile, su incidencia, características clínicas y patológicas, terapia y evolución en 14 casos. La incidencia acumulada (enero 1990 y diciembre 2002) fue de 0,68 por ciento. Diez pacientes tenían linfoma no Hodgkin (siete de alto grado de malignidad y 50 por ciento en estadios III-IVB) y cuatro Hodgkin (tres con celularidad mixta, dos en estadio IVB). Diez pacientes con linfoma estaban en etapa C3 de SIDA según criterios del CDC, con un promedio de CD4 de 139 células/mm³ y carga viral de 212.600 copias de ARN/ml. Ochenta y seis por ciento tenía afección ganglionar, localizada o generalizada. El tratamiento de los linfomas no Hodgkin de alto grado y extendidos fue con quimioterapia CHOP convencional, y en los linfomas de Hodgkin avanzados se aplicó el esquema ABVD. Seis pacientes recibieron tratamiento antiretroviral, cuatro simultáneamente con quimioterapia. La mortalidad global fue de 71 por ciento, por progresión tumoral y/o sepsis. Cuatro pacientes sobreviven (18 a 50 meses) en remisión completa, dos linfomas no Hodgkin y dos Hodgkin. Se discuten la baja incidencia de la asociación linfoma y SIDA y la mayor frecuencia de linfomas con adenopatías localizadas o generalizadas.