Paula F. Gheller

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In the current study we provide a reviewed list of valid genera and species of Xyalidae, a widespread family of mostly marine free-living nematodes. Comments are added about the historic background and taxonomic situation of the family, all valid genera and, when necessary, diagnostic characters are given. Additionally, information about distribution and(More)
The majority of studies have advocated that diversity of marine nematodes increases with increasing sediment grain size, although the opposite trend has also been suggested. The controversy is partially caused by not taking into account the effect of density on patterns of diversity and by analyzing datasets from different environments. The present study(More)
The authors report a case of a large Morgagni hernia treated by laparoscopy. The patient complained of dyspnea, cough, and a sensation of tightness in the chest 1 month prior to admission. Preoperative diagnosis was made by chest x-ray, CT scan, and MRI, which showed a large right paracardiac mass consisting of an omentum and transverse colon. By reducing(More)
BACKGROUND Gallstone ileus represents 1-3% of mechanical obstructions of the bowel. The surgical treatment performed in urgency has a mortality rates of 10-13% because galistone ileus is frequent in the elderly. Some diagnostic and therapeutic problems are debated in this paper. METHODS 9 cases of gallstone ileus were analysed retrospectively in a series(More)
Urachal cysts are anomalies related to the persistence of urachal remnants after the birth. They are seldom asymptomatic, but in some cases they mimic acute abdominal disease. We report a case of a 67-year-old man with relapsing episodes of intestinal sub-occlusion caused by the presence of an infected urachal cyst. The surgical procedure we used consisted(More)
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