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1.
Rev. esp. patol ; 53(4): 254-256, oct.-dic. 2020. ilus
Article in Spanish | IBECS | ID: ibc-200572

ABSTRACT

El riesgo de tumores secundarios en los pacientes que han recibido radioterapia mediastínica es ampliamente conocido. La adenosis microglandular de la mama es una lesión poco frecuente considerada como benigna, aunque se plantea su papel precursor del carcinoma infiltrante de mama. Presentamos un caso de adenosis microglandular en una paciente que recibió radioterapia mediastínica en la infancia por linfoma de Hodgkin. Hasta la fecha este es el primer caso informado en la literatura de adenosis microglandular en paciente con radioterapia mediastínica, planteando un interrogante en la contribución en la patogénesis


The risk of secondary tumors in patients who have received mediastinal radiation therapy is well-known. Microglandular adenosis of the breast is a rare lesion that is considered benign, although its possible role as a precursor of invasive breast carcinoma has been considered. We present a case of microglandular adenosis in a patient who received mediastinal radiation therapy in childhood for Hodgkin's lymphoma. To our knowledge, this is the first reported case of microglandular adenosis in a patient with mediastinal radiotherapy which may shed light on its pathogenesis


Subject(s)
Humans , Female , Adult , Hodgkin Disease/radiotherapy , Breast Neoplasms/secondary , Mammary Glands, Human/pathology , Triple Negative Breast Neoplasms/pathology , Radiotherapy/adverse effects , Mediastinal Neoplasms/radiotherapy
2.
Rev Esp Patol ; 53(4): 254-256, 2020.
Article in Spanish | MEDLINE | ID: mdl-33012496

ABSTRACT

The risk of secondary tumors in patients who have received mediastinal radiation therapy is well-known. Microglandular adenosis of the breast is a rare lesion that is considered benign, although its possible role as a precursor of invasive breast carcinoma has been considered. We present a case of microglandular adenosis in a patient who received mediastinal radiation therapy in childhood for Hodgkin's lymphoma. To our knowledge, this is the first reported case of microglandular adenosis in a patient with mediastinal radiotherapy which may shed light on its pathogenesis.


Subject(s)
Breast Neoplasms , Fibrocystic Breast Disease , Hodgkin Disease , Radiation Injuries , Breast Neoplasms/etiology , Female , Fibrocystic Breast Disease/etiology , Hodgkin Disease/radiotherapy , Humans
3.
Cir. plást. ibero-latinoam ; 45(3): 225-234, jul.-sept. 2019. ilus, tab
Article in Spanish | IBECS | ID: ibc-184395

ABSTRACT

Introducción y Objetivo. El linfoma anaplásico de células grandes asociado a implantes mamarios es un subtipo de linfoma de células T periférico que se puede encontrar en la cápsula periprotésica, el fluido entre implante y cápsula en forma de seroma o en casos avanzados como enfermedad metastásica. Aportamos 4 casos clínicos de este tipo de linfoma diagnosticados en la provincia de Alicante, España, siendo de interés por ser escasa la incidencia reportada y pocos los trabajos científicos publicados a nivel nacional sobre esta patología. Material y método. Describimos estos 4 casos registrando: edad, antecedentes, indicación del implante, detalles de la cirugía previa, tipo de superficie y marca del implante, presentación clínica del cuadro y tratamiento administrado. Resultados. Dos casos correspondieron a cirugía estética y 2 a cirugía reconstructiva, la presentación clínica en 3 casos fue como seroma tardío y en 1 como linfadenopatía. Tres implantes eran de superficie texturizada y 1 de poliuretano. En todos los casos se realizó capsulectomía bilateral. Conclusiones. La aportación de nuestra serie contribuye a destacar la importancia de reportar los casos diagnosticados dada la escasa incidencia de la enfermedad y el reducido número de publicaciones sobre la misma en el ámbito iberolatinoamericano


Background and Objective. The anaplastic large cell lymphoma associated with breast implants is a subtype of peripheral T cell lymphoma that can be found in the periprosthetic capsule, the fluid between the implant and the capsule in the form of a seroma, or in advanced cases such as metastatic disease. We provide 4 clinical cases diagnosed in the province of Alicante, Spain, being of interest because of the low incidence reported and few published scientific papers nationwide. Methods. We describe these 4 clinical cases and recorded: age, history, implant indication, previous surgery details, implant type of surface and brand, clinical presentation of the pathology and treatment. Results. Two cases corresponded to cosmetic surgery and 2 to reconstructive surgery; clinical presentation in 3 cases was late seroma and lymphadenopathy in 1. Three implants had textured surface and one was of polyurethane. Bilateral capsulectomy was performed in all cases. Conclusions. The main contribution of our cases is to highlight the importance of informing about diagnosed cases, because of the rare incidence of the disease and the lack of publications about this theme in the Ibero-Latinamerican environment


Subject(s)
Humans , Female , Adult , Middle Aged , Aged , Lymphoma, Large-Cell, Anaplastic/complications , Lymphoma, Large-Cell, Anaplastic/diagnosis , Breast Implants/adverse effects , Breast Neoplasms/diagnostic imaging , Mammaplasty/methods , Spain , Seroma/complications , Seroma/pathology , Seroma/surgery , Lymphadenopathy/complications , Lymphadenopathy/surgery , Retrospective Studies , Immunohistochemistry
5.
Endocrinol Nutr ; 57(1): 28-34, 2010 Jan.
Article in Spanish | MEDLINE | ID: mdl-20172484

ABSTRACT

The pathogenesis of pituitary tumours is far to be understood. Pituitary transforming tumour gene (PTTG), a gen that induces aneuploidy, genetic instability, cellular proliferation and to stimulate angiogenesis, has been involved in neoplasic transformation and shown overexpressed in many neoplasm as lung, breast, endometrium, thyroid and colon malignant tumours. On the other hand, PTTG has been inconsistently studied in pituitary tumours. The majority of studies have been performed in animals and there is a great variability in the methods used in its determination. The goal of this review is to resume the role of PTTG in tumourogenesis and critically to revise the studies published in humans in order to advance in the knowledge of the pathogenesis of pituitary adenomas and to find clinical useful predictors of the behavior of these tumours.


Subject(s)
Neoplasm Proteins/genetics , Pituitary Neoplasms/genetics , Humans , Securin
6.
Endocrinol. nutr. (Ed. impr.) ; 57(1): 28-34, ene. 2010. ilus, tab
Article in Spanish | IBECS | ID: ibc-81248

ABSTRACT

El pituitary transforming tumour gene (PTTG) está involucrado en una gran variedad de mecanismos fisiológicos. Se ha descrito sobreexpresión proteínica de PTTG en múltiples neoplasias, como los tumores hipofisarios, la cual favorece la aneuploidía, la inestabilidad genética, la proliferación celular y la angiogénesis, todos ellos procesos clave en la transformación neoplásica. Los estudios llevados a cabo en adenomas hipofisarios indican su asociación con un mayor grado de infiltración y de recidivas. Actualmente se plantea su función potencial como diana terapéutica (AU)


The pathogenesis of pituitary tumours is far to be understood. Pituitary transforming tumour gene (PTTG), a gen that induces aneuploidy, genetic instability, cellular proliferation and to stimulate angiogenesis, has been involved in neoplasic transformation and shown overexpressed in many neoplasm as lung, breast, endometrium, thyroid and colon malignant tumours. On the other hand, PTTG has been inconsistently studied in pituitary tumours. The majority of studies have been performed in animals and there is a great variability in the methods used in its determination. The goal of this review is to resume the role of PTTG in tumourogenesis and critically to revise the studies published in humans in order to advance in the knowledge of the pathogenesis of pituitary adenomas and to find clinical useful predictors of the behavior of these tumours (AU)


Subject(s)
Humans , Neoplasm Proteins/genetics , Pituitary Neoplasms/genetics
7.
Rev. esp. patol ; 40(4): 225-231, oct.-dic. 2007. ilus, tab
Article in Es | IBECS | ID: ibc-64148

ABSTRACT

Antecedentes: Los adenomas hipofisarios son neoplasiasbenignas que pueden tener un comportamiento localmenteagresivo. Métodos: En el presente trabajo se analiza el significadode la actividad proliferativa mediante inmunotincióncon Ki-67 en una serie de 107 adenomas hipofisarios. Resultados:La actividad proliferativa media fue de 1,99% (rango0%-18%) y la mayoría (81%) presentaron Ki-67 <3%. Seobservó una tendencia a la asociación entre mayor nivel deKi-67 y extensión extraselar, tipo inmunohistoquímico hormonal(prolactinomas y adenomas gonadotropos), sexo masculinoy menor edad. Sin embargo, no se demostró asociaciónsignificativa con la densidad mitocondrial y la densidadmicrovascular (DMV), la actividad funcional o la apariciónde recidiva. Conclusiones: El estudio de la actividad proliferativacon Ki-67 puede definir un subgrupo de adenomashipofisarios con comportamiento localmente más agresivo


Introduction: Pituitary adenomas are benign neoplasias,but they may behave locally more aggressive.Methods: The present study analyzes the significance ofproliferative activity by Ki-67 staining in a series of 107pituitary adenomas. Results: The mean proliferative activityrate was 1.99% (range 0%-18%) and the majority(81%) showed Ki-67 <3%. We showed a trend towards ahigher Ki-67 in adenomas with extrasellar extension, hormonalsubtype (prolactinomas and gonadotroph cell adenomas),male gender and younger age. However, no significantdifferences were found between Ki-67 and mitochondrialor microvascular densities, functional activity orrecurrence. Conclusions:We conclude that the proliferativeactivity evaluated by Ki-67 can define a subset of pituitaryadenomas with a more aggressive behavior


Subject(s)
Humans , Pituitary Neoplasms/pathology , Adenoma/pathology , Ki-67 Antigen/analysis , Neovascularization, Pathologic/pathology , Neoplasm Invasiveness/pathology
8.
Rev. esp. patol ; 39(2): 81-85, abr.-jun. 2006. ilus, tab
Article in Es | IBECS | ID: ibc-049670

ABSTRACT

La frecuente identificación de lesiones de célulascolumnares en biopsias mamarias realizadas por microcalcificacionesmamográficas ha determinado un renovadointerés en su adecuada clasificación y significado biológicoy clínico. En la presente revisión se describen los criteriosde clasificación, así como los principales problemas dediagnóstico diferencial, significado biológico y actitud clínicaante su diagnóstico


The frequent identification of columnar cell lesions inbreast biopsies performed due to microcalcifications mammograficalydetected, has determined an increasing interestfor the adequate classification, as well as their biologicaland clinical significance. In the present review, we describethe classification criteria and the main difficulties for thedifferential diagnosis, biological significance and clinicalmanagement of these lesions


Subject(s)
Female , Humans , Breast Neoplasms/pathology , Carcinoma, Ductal, Breast/pathology , Diagnosis, Differential , Breast Neoplasms/classification
9.
Rev. esp. patol ; 36(4): 357-372, oct. 2003. ilus, tab
Article in Es | IBECS | ID: ibc-30691

ABSTRACT

Los adenomas hipofisarios son neoplasias benignas originadas en células de la adenohipófisis. Representan el tumor más habitual en la silla turca y constituyen un 10-15 por ciento de las neoplasias intracraneales. Inicialmente fueron clasificados, según sus características tintoriales, en adenomas acidófilos, basófilos y cromófobos. La aplicación de técnicas morfológicas como la microscopía electrónica y la inmunohistoquímica, y la integración de los hallazgos morfológicos con los datos clínicos, de laboratorio y de las técnicas de imagen han permitido el desarrollo de la nueva clasificación de los adenomas hipofisarios. Las técnicas genéticas y moleculares están proporcionando información que ayuda a entender la patogénesis de algunas variedades de adenoma hipofisario. Por otra parte, la aplicación de determinados marcadores puede aportar información pronóstica y ayudar a predecir la respuesta a modalidades terapéuticas específicas (AU)


Subject(s)
Hypothalamo-Hypophyseal System/pathology , Hypothalamo-Hypophyseal System , Adenoma/diagnosis , Adenoma/pathology , Prolactinoma , Immunohistochemistry/methods , Microscopy, Electron/methods , Pituitary Gland, Anterior/pathology , Pituitary Gland, Anterior/cytology , Adenoma/classification , Adenoma/microbiology , Hyperprolactinemia/diagnosis , Hyperprolactinemia/pathology , Adenoma, Acidophil/diagnosis , Adenoma, Acidophil/pathology , Magnetic Resonance Spectroscopy , Adrenocorticotropic Hormone/analysis , Adrenocorticotropic Hormone
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