Renata Margarida Etchebehere

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This study was made with the objective of reevaluating the colon denervation in chronic Chagas' disease. The diameters of neuron perikaryons of the myenteric plexus were measured on paraffin sections in a ring from the sigmoid in Chagas' disease patients, 17 with and 10 without megacolon and in 10 non-chagasic controls. All neurons were counted in ten(More)
PURPOSE To analyze the findings of malignant neoplasms after hysterectomy for benign conditions. METHODS A retrospective study from January 1987 to December 2008 was conducted. We analyzed all simple hysterectomies with or without salpingo-oophorectomy for benign conditions (leiomyoma). Incomplete dossiers of patients or cases with uncertain clinical(More)
A morphometric study of the circular colon musculature was performed, in which the mast cell count was determined and the connective fibrous tissue in this layer was measured. The objective was to gain better understanding of Chagas megacolon morphology and contribute towards the knowledge of fibrosis pathogenesis in Chagas megas. An evaluation was made of(More)
This report describes a 29-year-old man with AIDS and disseminated lymphocutaneous sporotrichosis diagnosis presenting a poor therapeutic adhesion to itraconazole therapy that later evolved to neurological impairment and death. Necropsy showed granulomatous reaction and yeast-like forms similar to Sporothrix schenckii in meninges, lymph nodes, marrow bone,(More)
Leiomyosarcoma constitutes approximately 0.5% of the malignant neoplasias of the esophagus and its association with megaesophagus has not been described. We report on a case of a woman with dysphagia that was slowly progressive from the age of 19 due to chagasic megaesophagus. The woman was subjected to cardiomyotomy at the age of 49. She presented a rapid(More)
OBJECTIVE Malnourished patients with the acquired immunodeficiency syndrome (AIDS) can develop pellagra-like manifestations such as dermatitis, diarrhea, and dementia; therefore, we tested the hypothesis that patients with AIDS and diarrhea would have niacin depletion. This study compared 24-h urine excretion of N1-methyl-nicotinamide (N1MN) among patients(More)
There are few descriptions of association between chagasic megacolon and colon cancer. We report a case of obstructive abdomen caused by adenocarcinoma of the left colon in chagasic megacolon. A review of the literature revealed 8 cases of this association and, analyzing together the series of findings of cancer in chagasic organomegalies, we found a(More)
Neonatal sepsis is a major cause of morbidity and mortality and its signs and symptoms are nonspecific, which makes the diagnosis difficult. The routinely used laboratory tests are not effective methods of analysis, as they are extremely nonspecific and often cause inappropriate use of antibiotics. Sepsis is the result of an infection associated with a(More)
PURPOSE To investigate peritumoral and intratumoral infiltrates in surgical specimens obtained from patients with invasive breast cancer, and of relating these to tumor size. METHODS Twenty-six surgical specimens obtained from patients diagnosed with breast cancer underwent immunohistochemical preparation and CD3, CD8, CD20 and CD68 labeling. The positive(More)
Thymomas are neoplasms of the anterior mediastinum and generally occur between the fourth and sixth decades of life. In children, they are rare, with few reported cases. We describe a 9-year-old boy with invasive thymoma treated successfully by surgery alone. The patient was previously healthy and under treatment for a community-acquired pneumonia. A chest(More)