RESUMO
BACKGROUND: The systemic treatment of malignant endometrial stromal tumors (EST) is not well established. A few reports describe objective responses to imatinib, which suggest a novel therapeutic strategy for these tumors. Due to these facts, we aimed to perform a retrospective analysis of possible molecular targets of tyrosine kinase inhibitors (TKI) in EST: KIT, PDGFRA and EGFR. METHODS: 52 endometrial stromal sarcomas and 13 undifferentiated endometrial sarcomas were examined and reviewed. Mutational analysis were performed for exons 9, 11, 13, and 17 of the KIT gene, exons 12 and 18 of the PDGFRA gene and exons 18, 19, 20 and 21 of the EGFR gene. The incidence and distribution of the KIT, PDGFRA, and EGFR expression were examined by immunohistochemistry, and EGFR amplification was assessed by fluorescence in situ hybridization. RESULTS: No mutations in KIT, PDGFRA and EGFR genes were detected. Overexpression of KIT, PDGFRA, EGFR, was detected in 2 (3%), 23 (35.4%), 7 (10.8%) cases respectively, whereas amplification of EGFR gene was not found. CONCLUSIONS: Absence of significant expression, amplification and activating mutations on these tyrosine kinase receptors suggest that it is unlikely that EST can benefit from therapies such as TKI on the systemic setting.
RESUMO
Las recomendaciones para la biopsia por aspiración con aguja fina de mama se desarrollaron y aprobaron en 1997 por el Instituto Nacional de Cáncer en Bethesda, Estados Unidos y fueron adaptadas a nuestro país en 2007, sin embargo, en los últimos años no se han realizado cambios formales en estas indicaciones. El objetivo de este módulo es presentar la actualización del reporte de biopsia por aspiración con aguja fina de mama, usando el sistema de reporte Bethesda, realizado por consenso con un grupo de patólogos, clínicos, radiólogos, cirujanos de mama y otros profesionales de la salud de Colombia y otros países, y con base en la experiencia realizando biopsia por aspiración con aguja fina de mama del Hospital Pablo Tobón Uribe y de Dinámica IPS.
Recommendations for breast fine needle aspiration biopsy were developed and approved in 1997 by The National Cancer Institute of Bethesda, United States, , and were adapted to our country on 2007, however, in last years these indications have not changed in a formal manner. The purpose of this review was to provide an update of the report for breast fine needle aspiration biopsy using the Bethesda system. This guide was made by consensus with pathologists, clinicians, radiologists, breast surgeons and other health professionals of Colombia and other countries. The update was basis on the experience of Hospital Pablo Tobon Uribe and Dinamica IPS in performing breast fine needle aspiration biopsy.
Assuntos
Humanos , Biópsia por Agulha Fina , Doenças MamáriasRESUMO
En este artículo se presenta un consenso médico basado en el sistema de Bethesda del Instituto Nacionalde Cáncer (Estados Unidos) para el uso de la biopsia por aspiración con aguja fina en el manejo de nódulos tiroideos, realizado en conjunto con patólogos, radiólogos, endocrinólogos y otras especialidades médicas de Colombia, España, Chile, Venezuela, Estados Unidos y Panamá. En este trabajo se describen las indicaciones de la biopsia por aspiración con aguja fina de tiroides, requisitos previos, entrenamiento, acreditación, técnicas, terminología diagnóstica, pruebas complementarias y opciones de tratamiento. El objetivo del actual artículo es presentar ante la comunidad médica la clasificación de los reportes citológicos, el reporte de ecografía que propone usar el sistema de datos y el reporte de imágenes tiroideas (TIRADS, del inglés The Thyroid Imaging Reporting and Data System), el uso de la medición de tiroglobulina en biopsia por aspiración con aguja fina y técnicas de citología líquida;...
This article presents a medical consensus based on the Bethesda system of the National Cancer Institute (USA) for the use of fine needle aspiration biopsy in the management of thyroid nodules. This consensus was performed in conjunction with pathologists, radiologists, endocrinologists, and other medical specialties of Colombia, Spain, Chile, Venezuela, United States, and Panama. In this work was described the indications for fine needle aspiration biopsy of thyroid, prerequisites, training, accreditation, techniques, diagnostic terminology, additional tests and treatment options. The aim of this article is present to the medical community the classification of cytological report, ultrasound report using the data system, and the thyroid imaging reporting and data system (TIRADS); as well as, the use of thyroglobulin measurement in fine needle aspiration biopsy, and liquid-based cytology techniques...