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Search Results: 1 - 10 of 191385 matches for " D.; Lambropoulou "
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Primary combined carcinoid and adenocarcinoma of the ileum associated with transitional carcinoma of the bladder. Single case report Causa infrecuente de disfagia en el postoperatorio tardío de la cirugía de la hernia de hiato
I. D. Venizelos,D. Tamiolakis,M. Lambropoulou,T. Constantinidis
Revista Espa?ola de Enfermedades Digestivas , 2007,
Abstract: Composite neoplasms, carcinoid and adenocarcinoma have been reported to occur in several parts of the body, including the stomach, ampulla of Vater, large bowel, lung, and urinary bladder. Here we report a case of a 74-year-old male with a composite carcinoid-adenocarcinoma of the ileum associated with a transitional cell carcinoma of the bladder. The microscopical examination of the composite tumor showed an admixture of typical carcinoid tumor and moderately a differentiated adenocarcinoma. Immunohistochemically, the two components showed clear-cut differentiations. A review of the literature revealed that this is the first reported case of composite carcinoid-adenocarcinoma of the ileum associated with transitional cell carcinoma of the urinary bladder. Las neoplasias compuestas, el carcinoide y el adenocarcinoma se ha observado que aparecen en varias partes del organismo, como el estómago, la ampolla de Vater, el intestino grueso, el pulmón y la vejiga urinaria. Publicamos aquí el caso de un varón de 74 a os con un tumor compuesto de tipo carcinoide-adenocarcinoma del íleon asociado a un carcinoma vesical de células transicionales. El examen macroscópico del tumor compuesto mostró una mezcla de tumor carcinoide típico y adenocarcinoma moderadamente diferenciado. Desde el punto de vista inmunohistoquímico, los dos componentes estaban claramente diferenciados. Una revisión de la bibliografía reveló que este es el primer caso que se publica de un tumor compuesto de tipo carcinoide-adenocarcinoma del íleon asociado a un carcinoma de células transicionales de la vejiga urinaria.
Primary MALT lymphomas of the stomach: A pathological study of 18 cases Linfomas gástricos primarios tipo MALT: un estudio patológico de 18 casos
I. Venizelos,D. Tamiolakis,M. Lambropoulou,S. Bolioti
Revista Espa?ola de Enfermedades Digestivas , 2007,
Abstract: Aim: it is doubtful that whoever is suffering from gastric malt lymphoma will escape from the disease, if treated with medication against helicobacter pylori. Material and methods: a cohort of 18 patients was analysed. Ten hosts had primary gastric malt lymphoma and were treated with gastric resection as the initial therapy. Eight hosts received antibiotics against Helicobacter pylori as the initial treatment. In all 18 patients Helicobacter pylori status, endoscopic findings and pathology features were evaluated. Immunohistochemistry was performed to assess the bcl-2 and p53 status. Results: patients with low grade malt lymphoma: a) were Helicobacter pylori positive (5 of 5); b) had a superficial lesion (5 of 5); c) had no lymph node involvement (5 of 5); and d) were downstaged by comparison to patients with high grade tumor. Bcl-2 was positive in 4 of 5 low grade tumors, and p53 was positive in 12 of 13 high grade ones. Investigation of patients with 5-year follow up (n = 18) revealed that all but one low-grade tumors remained superficial with no progression. These tumors were bcl-2+/p53-, and the one with a bcl-2+/p53+ immunophenotype progressed to an ulcerated low-grade tumor after disappearance of Helicobacter pylori. Complete regression was found in 6 of 8 patients from the non surgically treated group (n = 8) after Helicobacter pylori eradication. These tumors were superficial/low grade/node negative/bcl-2+/p53 inconclusive (n = 2), superficial/low grade/node negative/bcl-2+/p53- (n = 2), and ulcerative/high grade/node negative/bcl-2+/p53- (n = 2). The two persistent tumors were ulcerative/high grade/node negative/bcl-2+/p53+. Conclusion: gastric malt lymphoma Helicobacter pylori+/superficial/low grade/bcl-2+/p53- will disappear after Helicobacter pylori eradication. Objetivo: es difícil que alguien que padezca un linfoma gástrico de tipo MALT pueda librarse de la enfermedad,... a menos que se le trate con medicación para Helicobacter pylori. Material y métodos: se analizó una cohorte de 18 pacientes. Diez huéspedes tenían linfoma gástrico de tipo MALT y se trataron con resección gástrica como tratamiento inicial. Ocho recibieron antibióticos frente a Helicobacter pylori como tratamiento inicial. En los 18 pacientes se evaluaron la presencia de Helicobacter pylori, los hallazgos endoscópicos y los rasgos patológicos. Se realizó una inmunohistoquímica para valorar el bcl-2 y el p53. Resultados: los pacientes con linfoma MALT de grado bajo: a) dieron positivo a Helicobacter pylori (5 de 5); b) tenían una lesión superficial (5 de 5); c) no tenían afe
High grade primary adrenal intravascular large B-cell lymphoma manifesting as Addison disease Linfoma intravascular de alto grado de células B grandes y origen suprarrenal que se manifiesta en forma de enfermedad de Addison
J. Venizelos,D. Tamiolakis,M. Lambropoulou,G. Alexiadis
Revista Espa?ola de Enfermedades Digestivas , 2007,
Abstract: We report a rare case of a 68 aged male who presented with adrenal failure and was diagnosed of high grade large B-cell lymphoma primarily arising in the adrenal glands. The patient was administrated with additional chemotherapy but he passed away 7 months later due to infection in the lungs. Intravascular lymphoma should be suspected in patients with bilateral adrenal masses who present with rapidly progressive adrenal insufficiency. Publicamos el caso poco frecuente de un varón de 68 a os de edad que debutó con insuficiencia adrenal y fue diagnosticado de linfoma de alto grado de células B grandes ubicado principalmente en las glándulas suprarrenales. Al paciente le administraron quimioterapia adicional, pero falleció 7 meses después de infección pulmonar. El linfoma intravascular debe sospecharse en los pacientes con masas suprarrenales bilaterales que presenten insuficiencia adrenal rápidamente progresiva.
Ber-H2 (CD30) Immunohistochemical Staining of Human Fetal Tissues
Tamiolakis D,Papadopoulos N,Lambropoulou M,Venizelos J
International Journal of Biological Sciences , 2005,
Abstract: OBJECTIVE: CD30 antigen has long been considered to be restricted to the tumour cells of Hodgkin's disease and of anaplastic large cell lymphoma as well as to T and B activated lymphocytes. It is now apparent that the range of normal and neoplastic cells, which may express CD30 antigen, is much wider than was at first thought. In order to gain insight into the physiological function of CD30 antigen, we studied the distribution of its expression in the tissues of fetuses from week 8th to week 16th. MATERIALS AND METHODS: We investigated the immunohistochemical expression of CD30 antigen in paraffin-embedded tissue samples representing all systems from 30 fetuses after therapeutic abortion at 8th to 10th and 12th to 16th week of gestation, respectively, using the monoclonal antibody Ber-H2. RESULTS: Our results demonstrated that CD30 is expressed early in human fetal development (8th to 10th week of gestation) in several fetal tissues derived from all three germ layers (gastrointestinal tract, special glands of the postpharyngeal foregut, urinary, musculoskeletal, reproductive, nervous, endocrine systems), with the exception of the skin and hematolymphoid system (thymus), in which the antigen is expressed later on (10th week onwards). Expression of CD30 was restricted to the hematolymphoid system in the 12-16 weeks of gestation. No expression of the marker was observed in the respiratory and cardiovascular systems during the entire period examined. CONCLUSIONS: CD30 antigen is of importance in cell development, and proliferation. It is also pathway-related to terminal differentiation in many fetal tissues and organs.
Myths and Realities About Corruption in Public Administration and its Discourse in Greece
Effi LAMBROPOULOU
Amsterdam Law Forum , 2012,
Abstract: In Greece, public administration receives as a given the strongest criticism from the Media, NGOs, economic, and international organisations as being too big, inefficient and expensive for what it offers; but above all for being the basic impediment to transparency and hence the development of the country, unlike the private economy which usually presents itself as the main ‘victim’ of bureaucracy and ‘corruption’. The article attempts to challenge some myths and dispute everyday theories reproduced and expanded even more during the last few years, inside and outside Greece, because of the economic crisis, about public service in the country. The impact of the dominant concept of corruption in countries of the semi-periphery like Greece, as expressed by international organisations, will be included in the analysis.
Braid equivalences and the $L$--moves
Sofia Lambropoulou
Mathematics , 2011,
Abstract: In this survey paper we present the $L$--moves between braids and how they can adapt and serve for establishing and proving braid equivalence theorems for various diagrammatic settings, such as for classical knots, for knots in knot complements, in c.c.o. 3--manifolds and in handlebodies, as well as for virtual knots, for flat virtuals, for welded knots and for singular knots. The $L$--moves are local and they provide a uniform ground for formulating and proving braid equivalence theorems for any diagrammatic setting where the notion of braid and diagrammatic isotopy is defined, the statements being first geometric and then algebraic.
Braid structures in knot complements, handlebodies and 3-manifolds
Sofia Lambropoulou
Mathematics , 2000,
Abstract: We consider braids on $m+n$ strands, such that the first $m$ strands are trivially fixed. We denote the set of all such braids by $B_{m,n}$. Via concatenation $B_{m,n}$ acquires a group structure. The objective of this paper is to find a presentation for $B_{m,n}$ using the structure of its corresponding pure braid subgroup, $P_{m,n}$, and the fact that it is a subgroup of the classical Artin group $B_{m+n}$. Then we give an irredundant presentation for $B_{m,n}$. The paper concludes by showing that these braid groups or appropriate cosets of them are related to knots in handlebodies, in knot complements and in c.c.o. 3--manifolds.
Knot theory related to generalized and cyclotomic Hecke algebras of type B
Sofia Lambropoulou
Mathematics , 2004,
Abstract: In this paper we consider all possible generalizations of the B-type Hecke algebras, namely the cyclotomic and what we call 'generalized', and we construct Markov traces on each of them, so as to obtain all possible different levels of homfly-pt analogues in the solid torus related to the (Hecke) algebras of B-type.
Primary combined carcinoid and adenocarcinoma of the ileum associated with transitional carcinoma of the bladder. Single case report
Venizelos,I. D.; Tamiolakis,D.; Lambropoulou,M.; Constantinidis,T.; Petrakis,G.; Alexiadis,G.; Papadopoulos,N.;
Revista Espa?ola de Enfermedades Digestivas , 2007, DOI: 10.4321/S1130-01082007000300005
Abstract: composite neoplasms, carcinoid and adenocarcinoma have been reported to occur in several parts of the body, including the stomach, ampulla of vater, large bowel, lung, and urinary bladder. here we report a case of a 74-year-old male with a composite carcinoid-adenocarcinoma of the ileum associated with a transitional cell carcinoma of the bladder. the microscopical examination of the composite tumor showed an admixture of typical carcinoid tumor and moderately a differentiated adenocarcinoma. immunohistochemically, the two components showed clear-cut differentiations. a review of the literature revealed that this is the first reported case of composite carcinoid-adenocarcinoma of the ileum associated with transitional cell carcinoma of the urinary bladder.
High grade primary adrenal intravascular large B-cell lymphoma manifesting as Addison disease
Venizelos,J.; Tamiolakis,D.; Lambropoulou,M.; Alexiadis,G.; Petrakis,G.; Papadopoulos,N.;
Revista Espa?ola de Enfermedades Digestivas , 2007, DOI: 10.4321/S1130-01082007000800010
Abstract: we report a rare case of a 68 aged male who presented with adrenal failure and was diagnosed of high grade large b-cell lymphoma primarily arising in the adrenal glands. the patient was administrated with additional chemotherapy but he passed away 7 months later due to infection in the lungs. intravascular lymphoma should be suspected in patients with bilateral adrenal masses who present with rapidly progressive adrenal insufficiency.
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