Neuroendocrine Tumors Classification
Mostrando 1-12 de 13 artigos, teses e dissertações.
-
1. Adenomatous Tumors of the Middle Ear: A Literature Review
Abstract Introduction Neuroendocrine adenomas of the middle ear (NAME) are uncommon causes of middle ear masses. Mostly limited to case reports and small series, the literature is poor in providing an overall assessment of these tumors. Objective To review the current literature about all aspects of the disease, including its etiology, clinical manifesta
Int. Arch. Otorhinolaryngol.. Publicado em: 2017-09
-
2. Esthesioneuroblastoma, Neuroendocrine Carcinoma, and Sinonasal Undifferentiated Carcinoma: Differentiation in Diagnosis and Treatment
Introduction Malignant sinonasal tumors comprise less than 1% of all neoplasms. A wide variety of tumors occurring primarily in this site can present with an undifferentiated or poorly differentiated morphology. Among them are esthesioneuroblastomas, sinonasal undifferentiated carcinomas, and neuroendocrine carcinomas. Objectives We will discuss diagnos
Int. Arch. Otorhinolaryngol.. Publicado em: 2014
-
3. Nível de expressão tumoral da indoleamine 2,3-dioxigenase (IDO) como marcador biológico e preditor de metástase em pacientes com tumor carcinoide típico broncopulmonar / Tumor Expression Level of Indoleamine 2,3 dioxygenase as Biological Marker and Metastasis Predictor in Patients with Typical Bronchopulmonary Carcinoid Tumors
Os tumores carcinoides típicos broncopulmonares (TCTB) são considerados neoplasias bem diferenciadas e as menos agressivas dentro do espectro dos tumores neuroendócrinos. Entretanto, metástases linfonodais e hematogênicas tem sido encontradas em número considerável de casos e não existem, até o momento, estudos relacionados aos mecanismos de escape
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/12/2011
-
4. Neuroendocrine tumors involving the gastroenteropancreatic tract: a clinicopathological evaluation of 773 cases
OBJECTIVE: Description of some of the clinical pathological characteristics of neuroendocrine tumors of the gastroenteropancreatic tract in Brazilian patients. INTRODUCTION: Neuroendocrine tumors arise in many organs and share common pathological features. In 2010, the World Health Organization published a new classification for neuroendocrine tumors using a
Clinics. Publicado em: 2011
-
5. Predição do risco individual de micrometástase do tumor carcinóide típico broncopulmonar em função de variáveis clínicas, anatomopatológicas e biomarcadores teciduais / Prediction of the individual risk of micrometastasis of the bronchopulmonary carcinoid tumors in function of clinical and anatomopathological features and biomarkers
Introdução: Os tumores carcinóides broncopulmonares típicos são proliferações malignas neuroendócrinas. Até bem pouco tempo eram consideradas como adenomas, isto é, tumores benignos. Porém com o avanço dos estudos anatomopatológicos, foi identificada a sua face maligna, pois apresenta as principais características das neoplasias malignas, quais
Publicado em: 2011
-
6. Individual risk prediction of node and distant metastasis based on lymphangiogenic intensity in typical pulmonary carcinoid tumor / Predição do risco individual de metástase linfática e hematogênica em função da intensidade da linfangiogênese no tumor carcinóide típico broncopulmonar
Typical pulmonary carcinoids are neuroendocrine cells proliferations and they were former considered lung adenomas with no hematogenic or lymphatic metastatic potential. However, it is known that up to 20% of patients develop metastatic disease. It is mandatory that new studies be developed due to the variation in clinical presentation of these patients. It
Publicado em: 2008
-
7. Expression of somatostatin receptor type 2 (SSTR-2) and its relation with lymphatic metastasis and preoperative clinical features in typical bronchopulmonary carcinoid tumors / Expressão de receptores de somatostatina subtipo 2 (SSTR-2) e a sua relação com metástase linfática e variáveis clínicas pré-operatórias em tumores carcinóides broncopulmonares típicos
Os tumores carcinóides broncopulmonares típicos (CT) são proliferações de células neuroendócrinas. Foram consideradas como adenomas e acreditava-se que não tinham potencial para disseminação hematogênica e linfática. Porém, a ocorrência de metástase linfática e hematogênica acontece em um quinto dos indivíduos acometidos por essa patologia.
Publicado em: 2008
-
8. p53 immunostaining is correlated with reduced survival and is not correlated with gene mutations in resected pulmonary large cell carcinomas
Malignancy of pulmonary large cell carcinomas (LCC) increases from classic LCC through LCC with neuroendocrine morphology (LCCNM) to large cell neuroendocrine carcinomas (LCNEC). However, the histological classification has sometimes proved to be difficult. Because the malignancy of LCC is highly dependent on proteins with functions in the cell cycle, DNA re
Brazilian Journal of Medical and Biological Research. Publicado em: 04/06/2007
-
9. Perfil imunoistoquímico dos tumores neuroendócrinos
Neuroendocrine tumours are a group of neoplasias that share morfofuncional characteristics but have a great variety of location, histogenesis, clinical presentation and prognosis. This study tests the immunohistochemistry profile of immunostaining to determine histogenetic characteristics and correlations with biological behavior determining factors. Twenty
Publicado em: 2007
-
10. Study of the correlation between metastasis incidence in typical bronchopulmonary carcinoid tumors and clinical features, tissue biomarkers and index risk / Estudo da correlação entre a incidência de metástases em tumores carcinóides típicos broncopulmonares e biomarcadores teciduais, variáveis clínicas e índice de risco
Carcinóides típicos são proliferações de células neuroendócrinas. Discute-se se são carcinomas ou adenomas, devido ao seu comportamento ambíguo. É imperativo conhecer seu potencial maligno para que se estabeleça o tratamento adequado. Os relatos de metástase exigem uma definição de quais são os critérios que podem ser utilizados para prever o
Publicado em: 2004
-
11. Chromogranin A expression in normal and malignant human tissues.
We used a recombinant cDNA probe for human chromogranin A to measure the expression of mRNA encoded by this gene in a variety of normal human tissues and tumor specimens using Northern blot and in situ hybridization analysis. With few exceptions, the expression of chromogranin A mRNA appears to be restricted to normal tissues and tumors of neuroendocrine lin
-
12. Classification of human lung carcinomas by mRNA expression profiling reveals distinct adenocarcinoma subclasses
We have generated a molecular taxonomy of lung carcinoma, the leading cause of cancer death in the United States and worldwide. Using oligonucleotide microarrays, we analyzed mRNA expression levels corresponding to 12,600 transcript sequences in 186 lung tumor samples, including 139 adenocarcinomas resected from the lung. Hierarchical and probabilistic clust
The National Academy of Sciences.