Metástasis: un hito para el conocimiento, un reto para la ciencia / Metastasis: a milestone for knowledge, a challenge for science

Introducción: La metástasis del cáncer es la transferencia de células tumorales de un órgano a otro mediante una serie de multipasos secuenciales interrelacionados. Este proceso es uno de los principales retos en el tratamiento del cáncer debido a su heterogeneidad biológica. El proceso de metástasis es considerado la principal causa de muerte en esta enfermedad, reportándose que más de 90 por ciento de las muertes por cáncer son debidos a esta etapa. Objetivo: Actualizar los conocimientos sobre metástasis en tumores sólidos y su asociación con transición epitelial-mesenquimal (EMT) en relación a la evolución y emergencia del cáncer. Método: Se realizó una revisión, no sistemática, de los estudios más significativos sobre el tema, publicados en la Web of Science, Pubmed, Ebsco, Scopus e Infomed. Conclusiones: La metástasis es la principal causa de muerte del cáncer, por lo que entender las bases del mecanismo de la formación de tumores metastásicos permitirá realizar terapias más eficaces para tratar el cáncer(AU)

Introduction: Cancer metastasis is the transfer of tumor cells from one organ to another through a series of interrelated sequential multi-steps. This process is one of the main challenges in cancer treatment due to the biological heterogeneity. The metastasis process is considered the main cause of death in this disease, accounting for more than 90 percent of cancer deaths. Objective: To identify the most recent advances on solid tumor metastasis and the association with epithelial-mesenchymal transition (EMT) in relation to the evolution and emergence of cancer. Method: A non-systematic review was carried out of the most significant studies on the subject, published in Web of Science, Pubmed, Ebsco, Scopus and Infomed. Conclusions: Metastasis is the main cause of cancer death, so understanding the bases of the mechanism for metastatic tumor formation will allow for more effective therapies(AU)

Neuroendocrine tumor in a child with common variable immunodeficiency / Tumor neuroendócrino em criança com imunodeficiência comum variável

ABSTRACT Objective: To report a case of a child with primary immunodeficiency who at eight years developed digestive symptoms, culminating with the diagnosis of a neuroendocrine tumor at ten years of age. Case description: One-year-old boy began to present recurrent pneumonias in different pulmonary lobes. At four years of age, an immunological investigation showed a decrease in IgG and IgA serum levels. After the exclusion of other causes of hypogammaglobinemia, he was diagnosed with a Common Variable Immunodeficiency and started to receive monthly replacement of human immunoglobulin. The patient evolved well, but at 8 years of age began with epigastrium pain and, at 10 years, chronic persistent diarrhea and weight loss. After investigation, a neuroendocrine tumor was diagnosed, which had a rapid progressive evolution to death. Comments: Medical literature has highlighted the presence of gastric tumors in adults with Common Variable Immunodeficiency, emphasizing the importance of early diagnosis and the investigation of digestive neoplasms. Up to now there is no description of neuroendocrine tumor in pediatric patients with Common Variable Immunodeficiency. We believe that the hypothesis of digestive neoplasm is important in children with Common Variable Immunodeficiency and with clinical manifestations similar to the case described here in the attempt to improve the prognosis for pediatric patients.

RESUMO Objetivo: Relatar um caso de criança portadora de imunodeficiência primária que, aos oito anos, desenvolveu sintomas digestivos, culminando com o diagnóstico de tumor neuroendócrino aos dez anos de idade. Descrição do caso: Menino, com um ano de idade, começou a apresentar pneumonias de repetição em diferentes lobos pulmonares. Aos quatro anos, a investigação imunológica mostrou diminuição dos níveis séricos de IgG e IgA. Após exclusão de outras causas de hipogamaglobulinemia, teve diagnóstico de imunodeficiência comum variável, passando a receber reposição mensal de imunoglobulina humana. Evoluiu bem, porém, aos oito anos, começou com epigastralgia e, aos dez anos, diarreia crônica persistente e perda de peso. O quadro culminou com o diagnóstico de tumor neuroendócrino intestinal, de rápida progressão, com óbito do paciente. Comentários: A literatura tem chamado a atenção para tumores gástricos em adultos com imunodeficiência comum variável, alertando para a importância do diagnóstico precoce e da pesquisa de neoplasias digestivas. Até o momento, não há descrição de tumor neuroendócrino em pacientes pediátricos portadores de imunodeficiência comum variável. Acredita-se ser importante a hipótese de neoplasia digestiva diante de crianças com imunodeficiência comum variável e com manifestações clínicas semelhantes ao caso descrito, na tentativa de melhorar o prognóstico para pacientes pediátricos.

Pathological features of 78 metastatic or multicentric neoplasms involving the central nervous system in dogs / Aspectos patológicos e distribuição de 78 neoplasias metastáticas ou multicêntricas envolvendo o sistema nervoso central de caninos

Secondary neoplasms affecting the central nervous system (CNS) may occur through blood flow or direct extension. This condition occurrence has increased both due to a longer life expectancy of dogs, as well as with the employment of chemotherapeutics, which may increase the survival period and, thus, the odds of the occurrence of metastasis. The aim of this study was to analyze the epidemiological features, such as the age, breed and sex of the animals affected, as well as the gross and microscopic findings of the metastasis from neoplasms involving the CNS of 78 dogs, and, based on the data, estimate the occurrence and frequency of the metastatic or multicentric neoplasms. Females (71.79%) were most affected than males, with an average age of 9.5-years-old and a median of 10-years-old. Most of the cases had a multifocal distribution (73.07%), and epithelial neoplasms (50%) were the most common. Telencephalon was the most affected neuroanatomical region (61.1%). Mammary neoplasms were the most frequent (47.44%), followed by hemangiosarcoma (19.23%), lymphoma (10.26%) and melanoma (6.41%). Less common neoplasms included osteosarcoma, histiocytic sarcoma and lung carcinoma (2.56%). Mammary neoplasms were mainly composed of anaplastic and micropapillary carcinomas, of which only multifocal microscopic lesions were observed.(AU)

Neoplasias secundárias envolvendo o sistema nervoso central (SNC) podem ocorrer por via hematógena ou por extensão direta. A ocorrência desta condição vem aumentando devido à expectativa de vida mais longa dos cães, bem como através do uso de quimioterápicos, os quais podem ampliar a sobrevida e, portanto, as chances para a ocorrência de metástases. O objetivo deste estudo foi analisar os aspectos epidemiológicos, como idade, raça e sexo dos animais afetados, bem como caracterizar os achados macroscópicos e microscópicos de neoplasmas com metástases envolvendo o SNC de 78 caninos e, baseado nestes dados, estimar a ocorrência e a frequência de neoplasias metastáticas ou multicêntricas. Fêmeas (71,79%) foram mais afetadas do que machos, com uma idade média de 9,5 anos e mediana de 10 anos. A maior parte dos casos apresentava distribuição multifocal (73,07%), e neoplasias de origem epitelial (50%) foram as mais frequentes. A localização neuroanatômica mais afetada foi o telencéfalo (61,1%). As neoplasias mamárias foram as mais frequentes (47,44%), seguidas por hemangiossarcoma (19,23%), linfoma (10,26%) e melanoma (6,41%). Osteossarcoma, sarcoma histiocítico e carcinoma pulmonar (2,56%) foram neoplasias menos frequentes. Os tipos de neoplasmas mamários mais observados foram o carcinoma anaplásico e o carcinoma micropapilar, nesses dois tipos as lesões eram multifocais e observadas somente na microscopia.(AU)

Estudio de variables y perfil inmunohistoquímico en pacientes con carcinoma de células renales / Study of variables and immunohistochemical profile in patients with renal cell carcinoma

En el 40% de los casos de carcinoma de células renales (CCR) se desarrollan metástasis después de la nefrectomía. En estadios avanzados la sobrevida es baja y los pacientes no siempre responden a la terapia actual con inhibidores de tirosinas quinasas (TKI). Con el propósito de encontrar nuevas dianas terapéuticas estudiamos 20 casos de CCR. Se observó una mayor frecuencia en hombres (60%) y en cuanto al grupo etario, un alto porcentaje de los estudiados fueron adultos jóvenes (40%). Solamente los pacientes en estadio IV recibieron tratamiento con TKI (Sunitinib). Por inmunohistoquímica se observó que ErbB-2 de membrana se expresó en el 40% de los CCR Células Claras. Se plantea la hipótesis que, este oncogén podría servir como diana terapéutica en nuestra población

Frecuencia de metástasis a la glándula submandibular en pacientes con carcinomas escamosos de cavidad bucal / Frequency of metastasis to the submandibular gland among patients with oral squamous cell carcinomas

Introducción: la posibilidad de metástasis a la glándula submandibular a partir de carcinomas escamosos localizados en la cavidad bucal, constituye un tema novedoso que ha sido abordado pocas veces en la investigación científica. En Cuba, es la primera vez que se realiza un estudio de esta naturaleza. Objetivo: determinar la frecuencia de metástasis a la glándula submandibular en pacientes con carcinomas escamosos de cavidad bucal operados usando disecciones cervicales linfonodulares. Métodos: se realizó un estudio prospectivo y descriptivo. Se seleccionó por muestreo no probabilístico a 43 pacientes que asistieron a la Consulta de Cabeza y Cuello del Servicio de Cirugía Maxilofacial del Hospital Provincial Universitario Clínico-Quirúrgico Arnaldo Milián Castro de Villa Clara, entre enero de 2011 y julio de 2014. Se consideró como criterio de inclusión todos los casos con diagnóstico de carcinoma escamoso de cavidad bucal, disección linfonodular como tratamiento oncoespecífico primario del cuello, que aceptaran participar en la investigación. Resultados: se obtuvo 68 glándulas submandibulares para su estudio a partir de la muestra de 43 pacientes en los que se efectuó exéresis del tumor primario y disección cervical linfonodular. Los tumores en suelo de boca y las etapas clínicas tempranas І-ІІ, fueron representados, respectivamente por 53,5 por ciento y 55,8 por ciento del total de pacientes. Solo existió compromiso de la glándula submandibular en un paciente (2,3 por ciento), causado por la invasión directa de la cápsula a partir de linfonódulos metastásicos adyacentes. Conclusión: no se encontró metástasis a la glándula submandibular en ningún caso; esto pudiera sugerir su preservación en las disecciones cervicales linfonodulares(AU)

Introduction: the possibility of metastasis to the submandibular gland in patients with oral squamous cell carcinomas is a novel topic not frequently dealt with in scientific research. This is the first time a study of this sort is conducted in Cuba. Objective: determine the frequency of metastasis to the submandibular gland among patients with oral squamous cell carcinomas undergoing the surgical procedure of cervical lymph node dissection. Methods: a prospective descriptive study was conducted. Non-probabilistic sampling was used to select 43 patients attending head and neck consultation at the Maxillofacial Surgery Service of Arnaldo Milián Castro Provincial Clinical Surgical University Hospital in Villa Clara from January 2011 to July 2014. Inclusion criteria were a diagnosis of oral squamous cell carcinoma, cervical lymph node dissection as primary onco-specific treatment, and willingness to participate in the study. Results: sixty-eight submandibular glands were obtained from the sample of 43 patients undergoing exeresis of the primary tumor and cervical lymph node dissection. Floor of mouth tumors and early clinical stages I-II represented 53.5 percent and 55.8 percent of the sample, respectively. Submandibular gland involvement was found in only one patient (2.3 percent) and it was due to direct invasion of the capsule by adjacent metastatic lymph nodes. Conclusion: submandibular gland metastasis was not found in any case, which could suggest the preservation of this gland when cervical lymph node dissection is performed(AU)

Tratamento cirúrgico do câncer de pele pelo cirurgião plástico / Surgical treatment of skin cancer by the plastic surgeon

Introdução: O câncer de pele é a neoplasia mais frequente no Brasil e corresponde a 25% de todos os tumores malignos. O melhor tratamento é a ressecção cirúrgica em fases iniciais. O cirurgião plástico, juntamente com uma equipe multiprofissional, participa no tratamento desta doença. O objetivo é analisar a eficácia dos procedimentos cirúrgicos realizados pelo cirurgião plástico no tratamento do câncer de pele. Método: Foram analisados 404 prontuários de pacientes operados no período de fevereiro de 2009 a dezembro de 2012 e analisados gênero, idade, diagnóstico, localização e evolução. Resultados: Faixa etária com média de 62 anos. 53% de casos de carcinoma basocelular, 25,5% melanoma e 15,1% carcinoma espinocelular. Houve predomínio de mulheres nos carcinomas basocelulares (56%) e no melanoma (54%) e de homens nos carcinomas espinocelulares (61%). Os carcinomas basocelulares (92,99%) e espinocelulares (72,13%) tiveram sua predominância na região de cabeça e pescoço; enquanto o melanoma predominou em região de tronco (36,89%) e membros inferiores (24,27%). Foram realizadas 67 cirurgias com pesquisa de linfonodo sentinela, com positividade em 14,93%. 7,76% dos pacientes de melanoma apresentaram metástases e 2,91% vieram a óbito. Conclusão: O cirurgião plástico é um dos profissionais importantes para o tratamento do câncer de pele, sendo o mais apto para realizar as reconstruções após as ressecções tumorais, pois tem em sua formação os conceitos de reparação, utilizando-se de enxertos e retalhos e considerando o aspecto estético dos pacientes. Cabe-lhe também a realização da cirurgia de pesquisa de linfonodo sentinela e o seguimento dos pacientes com câncer de pele.

Introduction: Skin cancer is the most common neoplasm in Brazil and it corresponds to 25% of all diagnosed malignant tumors. The best treatment is surgical resection in early stages. The disease is treated by a plastic surgeon along with a multidisciplinary team. The objective is to assess the effectiveness of surgical procedures performed by plastic surgeons to treat skin cancer. Methods: We analyzed medical records of 404 patients operated on between February 2009 and December 2012. Data analyzed included gender, age, diagnosis, localization and evolution. Results: Patients' mean age was 62 years. A total of 53% of patients had basal cell carcinoma, 25.5% melanoma and 15.1% squamous cell carcinoma. There was a predominance of women in basal cell carcinomas (56%) and melanoma (54%) and predominance of men in squamous cell carcinomas (61%). Basal cell carcinomas (92.99%) and squamous (72.13%) were predominant in the head and neck, melanoma predominated in the trunk region (36.89%) and in lower limbs (24.27%). We performed 67 surgeries with sentinel lymph node, with positivity in 14.93%. Patients with melanoma who had metastasis accounted for 7.76% and 2.91% patients died. Conclusion: Plastic surgeons are one of the important professionals for skin cancer treatment. These professionals are the most skilled one to perform reconstructions after tumor resections, because during education they learn repair concepts using grafts and flaps especially focused on aesthetic appearance of patients. They can also perform surgery for sentinel lymph node and offer follow-up to patients with skin cancer.

Redução das desigualdades no uso de consultas médicas no Brasil: análise das regiões Nordeste e Sudeste entre 2003 e 2008 / Reduction of inequalities in medical visits in Brazil: analysis of the Northeastern and Southeastern regions between 2003 and 2008

OBJETIVO: Analisar as desigualdades socioeconômicas na utilização de consultas médicas (CM) no último ano no Brasil. MÉTODOS: Dados da Pesquisa Nacional por Amostra de Domicílios (≥ 20 anos de idade) das Regiões Nordeste (2003, n = 75.652 e 2008, n = 79.779) e Sudeste (2003, n = 76.029 e 2008, n = 79.356) foram analisados segundo CM. Compararam-se as prevalências de CM segundo as variáveis exploratórias demográficas e de saúde no primeiro (D1) e último (D10) decil de renda familiar per capita. As análises consideraram o desenho amostral complexo. RESULTADOS: A proporção de pessoas com CM aumentou no período na Região Nordeste (61,2 para 66,9%) e Sudeste (67,9 para 73,5%). A diferença absoluta de CM, segundo D1 e D10 no período, foi de 6,4 pontos percentuais (pp) no Nordeste e 4,2 pp no Sudeste. Houve importante redução das desigualdades entre os homens; naqueles sem doenças crônicas; naqueles que tinham uma percepção positiva da sua saúde e naqueles sem plano de saúde com direito a CM. A Região Sudeste ainda apresentou redução entre aqueles com apenas uma morbidade autorreferida (8 pp) e com percepção negativa da saúde (6 pp). CONCLUSÃO: Houve aumento de CM no Brasil. Observa-se ainda persistente desigualdade entre os mais pobres e os mais ricos, maior no Nordeste do que no Sudeste. Políticas para a redução da desigualdade em saúde mais eficazes e equânimes devem ser adotadas no Brasil. .

OBJECTIVE: To analyze the socioeconomic inequalities in medical visits (MV) in the past year in Brazil. METHODS: Data from adults aged ≥ 20 years old who participated in the Brazilian National Household Surveys and living in the Northeastern (2003; n = 75,652 and 2008, n = 79,779) and Southeastern (2003; n = 76,029 and 2008; n = 79,356) regions were analyzed according to MV. We compared MVs according to demographic and health variables in the first (D1) and last (D10) per capita family income deciles. All analyses considered the complex cluster design. RESULTS: The proportion of people who had MV during this period increased in the Northeastern (from 61.2 to 66.9%) and the Southeastern (from 67.9 to 73.5%) regions. The absolute difference (AD) in the use of MV, according to D1 and D10 in this period, was equal to 6.4 percentage points (pp) in the Northeastern and 4.2 pp in the Southeastern regions. Significant reduction in inequalities was observed among men without chronic diseases, in those who had a positive perception of their health, and among those without health insurance which included MV. The Southeastern region has also showed significant reduction among those with chronic disease (8 pp) and with negative health self-perception (6 pp). CONCLUSION: The increasing number of MVs was found in Brazil. However, persistent inequalities were observed between the poorest and the richest, higher in the Northeastern than in the Southeastern region. More effective and equitable policies to reduce health inequalities should be adopted in Brazil. .

Overexpression of S100A4 as a biomarker of metastasis and recurrence in oral squamous cell carcinoma

S100A4, a biomarker of epithelial mesenchymal transition (EMT), plays an important role in invasion and metastasis by promoting cancer cell motility. In oral squamous cell carcinoma (OSCC), metastasis results in 90% of cancer associated mortality. Objective: To investigate the role of S100A4 expression as an important component of the epithelial mesenchymal transition (EMT) program in oral squamous cell carcinoma (OSCC). Material and Methods: S100A4 protein expression was assessed semi-quantitatively by immunohistochemistry in 47 histologically confirmed cases of oral squamous cell carcinoma (OSCC) and 10 normal oral mucosal biopsies. The association between the S100A4 overexpression and the aggressive features of OSCC were analyzed by X2 test. Results: Moderate to strong cytoplasmic expression of S100A4 was observed in 30 out of 47 specimens of OSCC (64%). Overexpression of S100A4 was significantly associated with the clinical stage, lymph node involvement, metastases, pattern of invasion and recurrence (p<0.05). Conclusion: S100A4 expression represents an important biomarker of prognostic significance that may be used to identify a subset of patients at high risk of invasion and metast .

Melanoma gástrico sin origen primario conocido / Gastric melanoma without well-known primary origin

El melanoma maligno es una neoplasia derivada de los melanocitos, que equivale al 5 por ciento de las neoplasias cutáneas. El 95 por ciento de los melanomas se desarrolla en la piel y menos de 3 por ciento corresponde a melanoma metastásico sin evidencia de tumor primario. En el tracto gastrointestinal, la afectación por melanoma es debido la mayoría de las veces a metástasis. El melanoma primario gastrointestinal está descrito que afecta a la zona anorrectal, seguido de esófago. El melanoma gástrico primario es un tumor excepcional, existen muy pocos casos documentados en la literatura. Presentamos el caso de un paciente con un melanoma en estómago como primera manifestación de la enfermedad y hacemos una revisión del estado actual(AU)

Malignant melanoma is a melanocyte-derived neoplasm and accounts for 5 percent of skin neoplasms. Ninety five percent of melanomas appear on the skin and less than 3 percent are metastasic melanoma without primary tumor evidence. In the gastrointestinal tract, most of cases of melanoma are metastasic. Primary gastrointestinal melanoma appears mostly in anorectal area followed by the esophageal area. Primary gastric melanoma is a very rare tumor, and there are very few cases reported in scientific literature. This is the report of a male patient with gastric melanoma as first sign of disease and a review of the present condition of the illness(AU)

Histological changes implicated in metastasis / Cambios histológicos implicados en metástasis

The process of malignancy emergence is associated with the acquisition of the capacity to invade other tissues. Several different biological processes have been described as involved in this process. Specifically, epithelial mesenchymal transition (EMT), a mechanism associated with embryogenesis and wound repair but also with mobility acquisition, is one of the concerned processes. In EMT an epithelial cell loses its epithelial characteristics, its junctions with neighbor cells and with the basal lamina and acquires mobility and mesenchymal characteristics. Also, factors of the tumor microenvironment have been described as involved. Tumor presence triggers a response in the surrounding tissue known as reactive stromal. It shows particular characteristics similar to those found in wound healing stroma: an increase of the fibroblast number and enhancing of the capillary density. The notable difference is the chronicity in the tumoral process. Of a high relevance seems to be the role of activated macrophages with a characteristic phenotype. Finally, cancer associated fibroblasts (CAF) are a type of cells found in tumors, developed from local tissue or possibly from bone marrow. CAF characteristically show a distinct morphology and secrete a high number of metalloproteases allowing tumoral cells advance through the tissue. Additionally, CAF have a direct effect on the survival of the epithelial cells. The three processes are interrelated and metastasis is probably caused by the effect of all of them and probably by other additional factors.

El desarrollo de malignidad está asociado con la adquisición de la capacidad de invadir otros tejidos. Varios procesos diferentes han sido asociados con la aparición de metástasis. Concretamente, la transición epitelio mesénquima (TEM), un mecanismo asociado con embriogénesis y reparación de heridas pero también con adquisición de movilidad, es uno de ellos. En la TEM, una célula epitelial pierde sus características epiteliales, sus uniones con las células vecinas y con la lámina basal y adquiere movilidad y características mesenquemáticas. También han sido asociados factores del microambiente del tumor. La presencia del tumor produce una respuesta en el tejido que lo rodea descrito como estroma reactivo. Sus características son similares a las del estroma de las heridas en proceso de curación: un incremento del número de fibroblastos y un aumento de la densidad de capilares. La gran diferencia es la cronicidad del proceso tumoral. De gran relevancia es el papel de los macrófagos activados que muestran un fenotipo característico. Finalmente, los fibroblastos asociados a cáncer (FAC) son un tipo de células encontradas en tumores, que se desarrollan a partir del tejido local o quizá de la médula ósea. Los FAC, de modo característico muestran una morfología diferente y secretan una gran cantidad de metaloproteasas permitiendo a la célula tumoral avanzar a través del tejido. Además, los FAC ejercen un efecto directo sobre la supervivencia de las células epiteliales. Los tres procesos están interrelacionados y la metástasis es causada probablemente por el efecto de todos ellos y probablemente por otros factores adicionales.

Avaliação oncológica após reconstrução mamária com lipoenxertia / Oncologic evaluation after breast reconstruction with fat grafting

Introdução: A reconstrução mamária é etapa fundamental no tratamento de pacientes com câncer de mama, sendo a lipoenxertia um importante recurso para melhora no resultado estético. Todavia, recentemente, alguns autores têm questionado a segurança da lipoenxertia, sugerindo que essa técnica possa aumentar o risco de recidiva tumoral local. Métodos: Estudo retrospectivo, tipo coorte transversal, realizado por meio de revisão de prontuários médicos de pacientes submetidas a reconstrução mamária com lipoenxertia pela Divisão de Cirurgia Plástica do Hospital das Clínicas da FMRP-USP, no período de 2006 a 2010. Resultados: Foram selecionadas 18 pacientes, sendo que oito (44%) apresentaram tumor do tipo histológico ductal. Três pacientes (17%) foram submetidas a quimioterapia neoadjuvante, sendo que destas, duas (11%) foram submetidas também a quimioterapia adjuvante; nove (50%) foram submetidas apenas a quimioterapia adjuvante. Onze pacientes (61%) foram submetidas a radioterapia adjuvante, e treze (72%) fizeram tratamento hormonal. Quanto à reconstrução da mama, oito pacientes (44,4%) realizaram TRAM, seis (33,3%), expansor mais prótese e quatro (22,2%), grande dorsal mais prótese. O número de sessões de lipoenxertia variou entre um e quatro. Não foi identificado nenhum caso de recidiva tumoral locorregional. Conclusão: Não foi evidenciado nenhum caso de recidiva tumoral locorregional, o que acrescenta, até o momento, confiabilidade e segurança à lipoenxertia como arsenal para os procedimentos que visam melhorar os resultados da reconstrução mamária após o tratamento oncológico.

Introduction: Breast reconstruction is an essential step in the treatment of patients with breast cancer. Fat grafting is an important resource for improved esthetic results. Recently, however, some authors have questioned the safety of fat grafting, suggestoncolóing that this technique can increase the risk of local tumor recurrence. Methods: A retrospective, cross-sectional cohort study was conducted through a review of medical records of patients who underwent breast reconstruction with fat grafting by the Plastic Surgery Division of the Clinical Hospital of the Ribeirão Preto Faculty of Medicine of the University of São Paulo (FMRP-USP), from 2006 to 2010. Results: We selected 18 patients, of whom eight (44%) had ductal carcinoma by histology. Three patients (17%) underwent neoadjuvant chemotherapy, and of these, two (11%) were also subjected to adjuvant chemotherapy. Nine (50%) received only adjuvant chemotherapy. Eleven patients (61%) underwent adjuvant radiotherapy, and thirteen (72%) had hormonal therapy. For breast reconstruction, eight patients (44.4%) underwent a transverse rectus abdominis myocutaneous (TRAM) flap procedure, six (33.3%) had an expander and prostheses, and four (22.2%) underwent a procedure with the latissimus dorsi muscle flap and prostheses. The number of fat grafting sessions ranged from one to four. No cases of locoregional recurrence of breast cancer were identified. Conclusion: There has been no evidence of locoregional recurrence to date, demonstrating that fat grafting is a reliable and safe procedure for improving the results of breast reconstruction after cancer treatment.

Carcinoma adrenal de rápida evolución / Rapidly evolving adrenal carcinoma

Introducción: el carcinoma suprarrenal primario es un tumor poco frecuente, altamente agresivo, de crecimiento rápido, con mayor incidencia entre los 40 y 60 años de edad. Los carcinomas funcionantes representan hasta un 79 por ciento de los tumores corticales, más frecuentes en el sexo femenino, y de estos el 50 por ciento se manifiestan clínicamente como un síndrome de Cushing. La extensión del tumor a estructuras vecinas es común y empeora el pronóstico. La supervivencia media es de 2 años desde el diagnóstico, en particular, cuando existen metástasis en hígado y pulmón. Objetivo: describir las características clínicas, los procederes diagnósticos y terapéuticos de una paciente con carcinoma adrenal de rápida evolución. Presentación del caso: paciente LRS, femenina, blanca, de 49 años de edad, con antecedentes de hipertensión arterial y diabetes mellitus tipo 2, que asiste a consulta por descontrol metabólico y de la hipertensión arterial. Al examen físico, se constatan signos sugestivos de hipercortisolismo, sintomatología que a los 2 meses se acentuó notablemente. Se realizaron estudios basales, dinámicos, imagenológicos y anatomopatológicos, que corroboraron el diagnóstico presuntivo. Se realiza adrenalectomía izquierda con adenectomía regional, y se confirma por anatomía patológica el diagnóstico de carcinoma suprarrenal izquierdo. A los pocos meses de la intervención la paciente fallece con metástasis óseas en columna vertebral. Conclusiones: el reconocimiento temprano de los síntomas y signos de hiperfunción adrenal es muy importante para el diagnóstico y tratamiento oportuno del carcinoma adrenal(AU)

Introduction: primary suprarrenal carcinoma is a highly aggressive rare carcinoma of rapid growth, with greater incidence in 40-60 years age group. The functioning carcinomas represent up to 79 percent of cortical tumors that are more frequent in females, and 50 percent of them clinically manifests as Cushing syndrome. The extension of the tumor to neighboring structures is common and worsens the prognosis. Mean survival rate is 2 years from the time of diagnosis, particularly when there are liver and lung metastases. Objective: to describe the clinical characteristics, the diagnostic and therapeutic procedures in a female patient with rapidly evolving adrenal carcinoma. Case presentation: a patient LRS, female, Caucasian, 49 years-old, with a history of blood hypertension and type 2 diabetes mellitus, who went to the hospital because of lack of metabolic control and blood hypertension. On physical examination, there were observed some signs suggestive of hypercortisolism, symptomatology that became notably acute two months later. Basal, dynamic, imaging and anatomopathological studies were made to corroborate the presumptive diagnosis. Left adrenalectomy with regional adenectomy was performed, and the diagnosis of left suprarenal carcinoma was confirmed through pathological anatomy. Few months later, the patient died from osseous metastasis in her spinal cord. Conclusions: early recognition of symptoms and signs of adrenal hyperfunction is very important for diagnosis and timely treatment of adrenal carcinoma(AU)

Células cebadas y sus patrones de expresión del receptor c-kit (CD117) como probables indicadores de metástasis en el adenocarcinoma de mama en humanos / Mast cells and expression patterns of c-kit (CD117) receptor as probable indicators of metastases in human breast adenocarcinoma

El adenocarcinoma de mama es la segunda neoplasia maligna más común en mujeres, solo después del cáncer de pulmón. Este tumor se clasifica histopatológicamente en bien, moderado y poco diferenciado. Además de esta clasificación, los análisis actuales utilizan inmunohistoquímica para identificar receptores hormonales para estrógenos y progesterona (RH) y HER2/neu, esta información permite hacer un pronóstico de respuesta al tratamiento y tiempo de sobrevida. Las células cebadas se han asociado a un mal pronóstico, ya que participan en la angiogénesis y el crecimiento tumoral favoreciendo la metástasis. Esto disminuye la esperanza de vida. También las células cebadas expresan en la membrana plasmática el receptor c-Kit (CD117) que se ha asociado a proliferación celular. En este estudio, se evaluó si existen variaciones en los patrones de expresión de c-Kit en las células cebadas presentes en muestras de adenocarcinoma de mama; y si los distintos patrones del receptor se asocian a la presencia de metástasis linfática. Se utilizaron muestras de adenocarcinoma moderadamente diferenciado, y se analizaron empleando métodos histológicos, histoquímicos e inmunohistoquímicos. Los grupos se clasificaron de acuerdo a su positividad a RH y HER2/neu, y se subclasificaron de acuerdo a la presencia o no de metástasis. Además se realizó un análisis morfométrico de células cebadas y los patrones de expresión de c-Kit. Los grupos con metástasis mostraron mayor cantidad de células cebadas comparados con el grupo control, y su grupo correspondiente sin metástasis. Las células cebadas con patrones de expresión 1 y 3 fueron más abundantes en los grupos con metástasis. En los grupos sin metástasis predominaron las células cebadas con el patrón 2. Los resultados sugieren que el número de células cebadas y los patrones de expresión de c-Kit, podrían ser empleados como indicadores probables, más no definitivos de la presencia de metástasis linfática.

Breast adenocarcinoma is the second most common neoplasm, just after lung cancer in women. According to histopathological features this tumor is classified into well, moderate and poorly differentiated. In addition to this classification, current analysis also use immunohistochemistry to detect estrogen and progesterone receptors (RH), and HER2/neu, this information is useful to make a prognostic in treatment response and survival time. Mast cells have been associated with bad prognosis, because they participate in angiogenesis and tumor growth promoting metastases. This decreases life expectancy. Also mast cells express in the plasmatic membrane the receptor c-Kit (CD117) that is associated to cell proliferation. In this study, we evaluated if there are variations in the expression patterns of c-Kit receptor in mast cells present in breast adenocarcinoma samples; and if expression patterns are associated with the presence of metastases to ganglion. Samples of moderately differentiated adenocarcinoma were evaluated using histological, histochemistry and immunohistochemistry methods. Groups were classified according to their positivity to RH and HER2/neu, and subclassified if presented or not metastases. Also mast cells and expression patterns of c-Kit receptor were analyzed by a morphometric method. Groups with metastases showed higher amount of mast cells, compared with control group and their corresponding group without metastases. Mast cells with expression patterns 1 and 3 were more abundant in all the groups with metastasis. In groups without metastases mast cells with pattern 2 were predominant. Results suggest that the amount of mast cells and the expression patterns of c-Kit could be use as probable indicators, but not definitive of the presence of nodal metastases.

Metástasis cutáneas / Cutaneous metastases

Las metástasis cutáneas son tumores malignos que comprometen la piel sin mantener una relación de contigüidad con la neoplasia que les da origen. Las células que se desprenden del tumor primario llegan a la piel a través de vasos linfáticos o venosos. En pacientes con neoplasias de órganos internos se estima una prevalencia global cercana al 5%. La principal causa es el cáncer de mama, y el melanoma le sigue en orden de frecuencia. Este último es el tumor con mayor potencial para generar metástasis en la piel. El cáncer de pulmón, el cáncer de colon, el cáncer de la cavidad oral, el cáncer de riñón y el cáncer de ovario son también causas habituales. Clínicamente la mayoría de las lesiones adopta una morfología nodular. Existen además variantes bien caracterizadas como las metástasis en coraza, las metástasis erisipelatoides y las metástasis telangiectásicas, entre otras. Para confirmar el diagnóstico se requiere el estudio histopatológico. En el mismo se observa la presencia de células neoplásicas que comprometen la dermis o hipodermis. En ocasiones las lesiones son poco diferenciadas y suele ser necesaria la utilización de marcaciones inmunohistoquímicas para llegar al diagnóstico etiológico. La presencia de metástasis cutáneas implica un mal pronóstico. No obstante, los pacientes con melanoma y cáncer de mama suelen tener una sobrevida relativamente mayor...

Melanoma metastásico: a propósito de un caso / Metastatic melanoma: a case report

El melanoma maligno es un tumor que se origina de los melanocitos de la piel o en menor frecuencia de las mucosas (oral, anal o genital). También se ha descrito en vagina, leptomeninges y globo ocular.1,3,4 La edad de presentación oscila entre los 40 y 60 años, aunque puede presentarse a cualquier edad. Su desarrollo está influenciado por factores genéticos y ambientales.2,3 En los últimos años ha existido un crecimiento exponencial en los casos de esta patología. Representa la primera causa de muerte por cáncer de piel y tiene un comportamiento biológico que determina el pronóstico. Presenta dos fases de crecimiento, una intraepidérmica y otra intradérmica, en la que tiene capacidad de producir metástasis (las cuales ocurren durante los tres primeros años de la lesión inicial) como resultado de la invasión de la membrana basal, la migración hacia el torrente sanguíneo o a la circulación linfática, la cual representa más del 50% de la vía de diseminación.1,3,4 El método diagnóstico de elección es la extirpación y estudio histológico de una lesión sospechosa. Se presenta el caso de paciente masculino de 45 años, que consultó por dolor abdominal de aparición insidiosa en epigastrio irradiado a hipocondrio derecho, urente, de fuerte intensidad. Concomitantemente alzas térmicas de predominio nocturno y náuseas. Como antecedente refiere enucleación de globo ocular derecho por tumor cuya histología fue compatible con melanoma. Ultrasonido abdominal reportó imágenes compatibles con metástasis hepáticas, de las cuales se toma biopsia que concluye: Melanoma metastásico. Endoscopia digestiva superior: en cuerpo bajo, cara anterior se aprecia lesión de bordes irregulares, coloración negruzca, discretamente elevada, cuya biopsia fue negativa para malignidad. Se presenta el caso debido al mal pronóstico de esta patología y a lo poco frecuente de esta forma de presentación.

Malignant melanoma is a tumor that arises from melanocytes of the skin or mucous less frequently (oral, anal or genital). It has also been described in vagina, leptomeninges and eyeball.1,3,4 The age of onset is between 40 and 60, but it may occur at any age. Its development is influenced by genetic and environmental factors.2.3 In recent years there has been an exponential growth in cases of this disease. Is the leading cause of death from skin cancer and has a biological behavior that determines the outcome. It has two phases of growth, intraepidermal and intradermal, which is capable of producing metastases (which occur during the first three years of the initial injury) as a result of the invasion of the basement membrane, migration into the bloodstream or lymphatic circulation, which represents more than 50% of the route of dissemination.1,3,4 The diagnostic method of choice is the removal and histological examination of a suspicious lesion. A case of a male patient aged 45, who consulted for strong epigastrical pain of insidious onset radiating to right upper quadrant. Concomitantly fever and nausea. As regards history right eyeball enucleation due to a tumor whose histology was compatible with melanoma. Abdominal ultrasound reported images suggestive of liver metastases, which biopsy was reported as: Metastatic melanoma. Upper gastrointestinal endoscopy: low gastric body lesion is seen with irregular edges, color blackish, slightly elevated, whose biopsy was negative for malignancy. This case is reported due to the poor prognosis of this disease and the uncommonless of this presentation.

Metástasis coroideas: clarinada hacia la nada: presentación de casos icónicos / Choroid metastasis: clarion call toward nothing: presentation of two iconic cases

La metástasis intraoculares de tumores sólidos o hematológicos, son un problema clínico para el oftalmólogo práctico y el oncólogo. La localización más frecuente es la coroides, constituyendo el tumor intraocular más frecuente. Suelen diagnósticarsé en pacientes en estadios tumorales muy avanzados, por lo que en el pasado la mayoría de las series publicadas eran descripciones de necropsias. Su diagnóstico generalmente puede hacerse mediante cuidadoso examen. Se estima que la frecuencia general en pacientes que fallecen por cáncer es de aproximadamente 12%, pero puede elevarse en 37% en aquellos con carcinoma mamario, muy superior a la de los tumores primarios, fundamentalmente los melanomas. No obstante, sin compresión ha aumentado en años recientes ofreciendose nuevas formas de tratamiento siendo todavía la radioterapia la que permite a los pacientes mantener una visión.

Intraocular metastases of solid and hematological tumors are clinical problem for the practicing ophthalmologist and oncologist. Its diagnosis can usually be made through careful examination. The most common intraocular tumor. They are often diagnosed in patients in very advanced tumor stages, which is why in the past most of the published series were descriptions of necropsies. The overall frequency of ocular metastases in patients dying of cancer is approximately 12%, but it can be as high as 37% in patients with breast cancer, highly superior to primary tumors, mainly melanomas. Hawever, our understanding of them has increased in recent years, offering new forms of treatment. Radiation therapy is still the cornerstone of treatment, allowing nost patients to maintain usefull vision. Clinical cases with photographic support of an iconic patient are presented to illustrate the problem.

Cutaneous metastasis of testicular choriocarcinoma, diagnosed by fine-needle aspiration cytology: A rare case report and review of the literature.

Skin metastasis of testicular choriocarcinoma is very rare. Until now about nine cases have been reported in the English literature; however, only one of them has been diagnosed by fine-needle aspiration (FNA) cytology. Herein, we report our experience with FNA cytology diagnosis of a metastatic testicular choriocarcinoma to the skin of chin. The combination of highly atypical mononuclear cells (cytotrophoblasts) and multinucleated malignant cells (syncytiotrophoblasts) are characteristic of metastatic tumor in a known case of choriocarcinoma of testis.

Metástasis tiroidea de un carcinoma de células renales: a propósito de un caso / Thyroid meatastases of a renal cell carcinoma: a case report

El carcinoma de células renales de células claras, es impredecible con comportamiento agresivo dentro de los tumores malignos, metastatiza en pulmón, hígado, piel, hueso, ganglios linfáticos, cerebro, cavidad nasal, encía, laringe y tiroides, pudiendo ocurrir antes o después del descubrimiento primario. Femenina 71 años, antecedente diagnóstico carcinoma de células renales en 1996. Intervalo libre de enfermedad 11 años. En 2008 se encuentra a la palpación tumor en lóbulo derecho del tiroides de 4 cm, móvil. Eco tiroideo: nódulo de 3,5 cm x 3,3 cm derecho. Punción con aguja fina: hallazgos compatibles con neoplasiafolicular. Se realiza: tiroidectomía total: carcinoma de células claras metastásico en ambos lóbulos del tiroides. El tumor metastásico tiroideo de un carcinoma renal es una entidad muy poco frecuente y asintomática, encontrándose como hallazgo en la necropsia. Ante un paciente con historia de cirugía por tumor renal y presencia de nódulo tiroideo se debe sospechar de metástasis

Carcinoma of the renal cells of clear cells has one of most essential landlord’s behaviors within the malignant tumors, metastases in lymphatic lung, liver, skin, bone, ganglia, brain, nasal cavity, larynx and thyroid, being able to happen before as much as after the discovery of the primary tumor. Feminine 71 years that diagnostic antecedent presents displays carcinoma of renal cells in 1996, free interval of disease 11 years. June 2008, being to the palpation in neck tumor 4 cm, moving body. Echo: Nodule of 3.5 cm x 3.3 cm. Puncture: Compatible findings with follicular neoplasia. Realized: Total thyroidectomy: Carcinoma of clear cells metastatic both lobes of the thyroid. The metastases thyroid tumor of renal carcinoma is an organization frequent little asymptomatic, being like finding in the post-mortem examination. Despite before a patient with history of surgery by renal tumor and presence of thyroid nodule one is due to suspect metastasis