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Inflammatory myofibroblastic tumor (IMT) of the urinary tract, also termed postoperative spindle cell nodule, inflammatory pseudotumor, and pseudosarcomatous fibromyxoid tumor, is rare and in the past was believed to reflect diverse entities. We reviewed a series of 46 IMTs arising in the ureter, bladder, and prostate, derived primarily from a large(More)
In the present report we studied the formation of severe gastric erosions produced in fasted rats by intragastric administration of piroxicam (PRX), an enolic acid-derived NSAID. The time course of gastric damage and the possible role of mucus secretion, endogenous sulphydryl compounds, changes of gastric vascular permeability and neutrophil infiltration in(More)
OBJECTIVE The purpose of this study was to evaluate the potential usefulness of contrast-enhanced power Doppler ultrasound in the detection and follow-up of local complications (phlegmon and abscess) in Crohn's disease. METHODS With this aim, 28 patients with suspected abdominal inflammatory mass were examined with power Doppler ultrasound before and(More)
The aim of our study was to evaluate the use of a 1-molar gadolinium chelate (gadobutrol) as an alternative contrast medium for computed tomography angiography (CTA) exams of the aorta. CTA exams of the thoracic and/or abdominal aorta were performed on 15 patients with contraindications for the use of iodine who were not suitable for magnetic resonance(More)
l-Arginine (l-arg) exhibits multiple biological properties and plays an important role in the regulation of different functions in pathological conditions. Many of these effects could be achieved on this amino acid serving as a substrate for the enzyme nitric oxide synthase (NOS). At the gastrointestinal level, recent reports revealed its protective(More)
We compared CSF and serum levels, and the CSF/serum ratio of alpha-tocopherol (vitamin E), measured by HPLC, in 30 patients with sporadic amyotrophic lateral sclerosis (SALS) and 78 matched controls. The mean CSF and serum vitamin E levels did not differ significantly between the 2 study groups. These values were not influenced by the clinical form (spinal(More)
Cyclic GMP plays an important role in maintaining homeostasis in the gastric mucosa. NSAIDs damage the mucosa by mechanisms that may be mediated by alterations in the intragastric concentration of cyclic GMP. To test this hypothesis we studied the effects of the oral administration of acetylsalicylic acid (100, 300, and 500 mg/kg), piroxicam (5, 10, and 20(More)
OBJECTIVE To evaluate the capability of contrast-enhanced wideband harmonic imaging (WHI) to detect liver metastases in comparison with fundamental B-mode US and postcontrast CT. METHODS We studied 27 patients with hepatic metastases from different malignancies with conventional B-mode sonography, WHI 3 min after injection of contrast agent (Levovist(R)(More)