Mostrando 1 - 5 Resultados de 5 Para Buscar 'Calderón-Rivera, Andrea', tiempo de consulta: 0.01s Limitar resultados
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tesis de grado
Background: The prevalence of H. pylori is greater than 50% in low development countries. In children, infection with H. pylori produces effects such as low height, impairment in growth especially in pubertal age. Polymerase Chain Reaction has a high sensitivity and specificity of 89.6% and 100% respectively, compared to other invasive methods. The objective of this study is to determine the frequency of patients with presence of H. pylori in asymptomatic children in a rural community in the north of Peru, using PCR technique in stool samples. Methods: A cross-sectional study with a convenience sampling was performed, resulting in 147 children aged between 6-14 years old of the district of San Pablo in Cajamarca, Peru. Using stool samples H. pylori DNA was obtained, then PCR amplification was done, and sequencing those with positive results, in an agreement with Macrogen, Seoul - Korea. ...
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artículo
Los tumores neuroendocrinos de cuello uterino son extremadamente raros. Las mujeres con diagnóstico de carcinoma neuroendocrino de células pequeñas del cuello uterino tienen mayor frecuencia de metástasis en los ganglios linfáticos, invasión linfovascular, recurrencia y peor pronóstico en comparación con aquellos con otros tipos de neoplasias cervicales. Se presenta el caso de una mujer de 58 años, con un tiempo de enfermedad de seis años antes del ingreso, caracterizado por sangrado vaginal irregular posmenopáusica, además de sintomatología relacionada a anemia crónica. En el examen ginecológico, se evidenció tumoración de 4 cm que ocupaba tercio superior de vagina y protruía por el cérvix. Fue diagnosticado como mioma abortivo y enviada a estudio anatomopatológico. El resultado fue carcinoma neuroendocrino de células pequeñas grado III en el 90% y carcinoma epider...
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artículo
Neuroendocrine tumors of the cervix are extremely rare. Women diagnosed with small cell neuroendocrine carcinoma of the cervix have a higher frequency of metastases in the lymph nodes, lymphovascular invasion, recurrence and worse prognosis compared to those with other types of cervical neoplasia. We report the case of a 58-year-old female, with a history of six years of postmenopausal irregular vaginal bleeding, in addition to symptoms related to chronic anemia. Gynecological examination showed a tumor of 4 cm that occupied the upper third of the vagina and protruded through the cervix initially diagnosed as an abortifacient myoma, and sent to histopathology study. 90% of the tumor was small cell neuroendocrine carcinoma grade III, and the remaining 10% was squamous cell carcinoma. The patient underwent into a radical hysterectomy plus bilateral salpingo-oophorectomy, and bilateral pelv...