OBJECTIVE On a global scale, stratospheric ozone depletion has caused an increase in UV-B radiation reaching the earth's surface. Ultraviolet radiation has long been suspected to be harmful to aquatic organisms. MATERIALS AND METHODS In order to study ionocyte localization (by Na(+)/K(+)-ATPase immunolocalization) and the effects of UV radiation on the ionocytes of skin and gills, the alevins...

A transomental hernia through the greater or lesser omentum is rare, accounting for approximately 4% of internal hernias. Transomental hernias are generally reported in patients aged over fifty. In such instances, acquired transomental hernias are usual, are commonly iatrogenic, and result from surgical interventions or from trauma or peritoneal inflammation. In rare cases, such as the one desc...

Extraosseous Ewing's sarcoma/primitive neuroectodermal tumor (ES/PNET) is an uncommon, aggressive, and malignant tumor with a poor patient outcome. Its occurrence in the lesser sac is a rare event and to the best of our knowledge, has not been previously described. The present case was clinically and radiologically misdiagnosed as a pancreatic tumor/gastrointestinal stromal tumor. Histopatholog...

The surgical technique we applied was the classical one with several improvements. Firstly, the timing of intervention is delayed until the occurrence of the clearly defined infected necrosis. Secondly, we limited the propagation of infection in submesocolic peritoneal cavity by creating this omental laparostomy with suturing the cutting edges of the gastrocolic ligament to the supra-umbilical ...

BACKGROUND Immediate outcomes after pancreatic necrosectomy have improved in recent years. This study reviews our short-term to medium-term experience of structural and functional changes in the pancreas after necrosectomy. METHODS Ten patients (8 males, median age 35 years), discharged after pancreatic necrosectomy for acute necrotizing pancreatitis between 1996 and 1998 were reviewed after ...

Gastrointestinal stromal tumours (GISTs) are solid tumours of the gastrointestinal tract, mostly found in the stomach and intestine. They rarely present as cystic lesions. A 74-year-old woman referred to the hepatopancreaticobiliary unit, with 3 months history of upper abdominal discomfort. Abdominal ultrasound scan showed a large cystic lesion in the epigastric region suggestive of a pancreati...

PURPOSE Percutaneous epidural neuroplasty (PEN) is a minimally invasive treatment. The efficacy of PEN has been relatively well investigated; however, the relationship between the clinical effectiveness of PEN and the severity of spinal canal stenosis by disc material has not yet been established. The purpose of this study was to compare clinical outcomes of PEN according to the dural sac cross...