Publications by authors named "Joao Saldanha"

The primary small cell carcinoma of the vagina is rare, and it is a highly aggressive malignancy with no consensus regarding the treatment of this tumor. The survival rate for patients treated in the early stages is around two years. We related the case report of a patient of 41 years with a vegetative and necrotic lesion in left vaginal wall, in middle and upper third, and involvement of parametrium in its proximal third and medium third.

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Ovarian fibroma is the commonest benign tumor of the ovarian stroma. The cellular subtype accounts for around 10% of ovarian fibromatous tumors. The cellular fibroma is a tumor of uncertain malignant potential that may recur or be associated with peritoneal implants.

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Complications act as stress-inducers during pregnancy so the fetus can develop functional compensatory mechanisms or morphologic changes. The cases analyzed are with congenital malformations or acute stress; chronic included cases with ascending infection (AI) and perinatal hypoxia/anoxia (PHA). The hematoxylin-eosin (H&E) was done to analyze the vacuolization, and the immunohistochemistry to the phagocytosis.

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We present a rare case of a 68-year-old postmenopausal woman with a mobile, hard, and painless pelvic abdominal mass that was palpated to the umbilical scar. Ultrasonography demonstrated a solid mass in the upper pole of the right kidney and a predominantly solid pelvic abdominal mass. Serum testosterone was 413 ng/dL.

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Several general pathologic processes that affect the uterine cervix have been described in Brazil and in the world. The aim of the current study was to evaluate morphometrically the cervical epithelium of autopsied patients with AIDS. This is a cross-sectional study of the cervix of 38 women autopsied from 1993 to 2003.

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Lung cancer continues to be the most incident neoplasia in the world and also the most frequent cause of death by cancer, with more than 900000 new cases per year. Women present greater risk of developing bronchogenic carcinoma, possibly because of differences in metabolism of the carcinogens associated with tobacco and also because of hormonal differences because estrogens can promote the appearance of lung cancer, including during pregnancy. We have described the case of a 25-year-old patient who developed squamous cell carcinoma of the lung during her third pregnancy, with a progressive worsening of her general condition and progression until death.

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Article Synopsis
  • The study aimed to see if using a Lanz pressure regulating valve on endotracheal tubes (ETT) could reduce tracheal damage in dogs during anesthesia with nitrous oxide (N2O).
  • Sixteen mixed-breed dogs were divided into two groups, one using a standard Rüsch ETT and the other using a Lanz ETT, with measurements taken before and during N2O administration.
  • Results showed that the Lanz group had lower cuff pressures and significantly less tracheal inflammation and damage compared to the Control group, suggesting the Lanz ETT is better at protecting the trachea.
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We describe the finding of unizoic cysts of Isospora belli in lymphoid tissues of a Brazilian patient with AIDS, and discuss the possibilities of their drug resistance, they being the cause of relapses, and of being an indication for the existence of intermediary or paratenic animal hosts.

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This report describes the presence of Isospora belli unizoic cysts in mesenteric lymph nodes and of gametocytes in the gallbladder epitelium of a 26 year-old Brazilian male patient with Acquired Immune Deficiency Syndrome. This patient had received treatment for several times with sulfamethoxazole-trimethoprim. It is discussed the significance of I.

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