background: positron emission tomography (pet) scan is a non-invasive, complicated and expensive medical imaging technology used for diagnosis and treatment of various diseases including cancers. this study aimed to evaluate the safety and effectiveness of this technology in iran. methods: the major medical electronic databases including cochrane library, google scholar, medline and iranmedex w...

gastrointestinal duplications are rare congenital malformations and they may vary greatly in presentation, size, location and symptoms. the presence of ectopic gastric mucosa (egm) in them is not common and they are difficult to diagnose prior to surgery. we present the case of a child with long intestinal duplication with ectopic gastric mucosa who presented with just severe anaemia and delaye...

chronic rhinosinusitis (crs) is a common disease which is usually diagnosed clinically, considering the combination of natural history, physical examination and imaging studies. this study aimed to evaluate the clinical value of routine postoperative histopathologic examination (pohe) in patients with a clinical diagnosis of chronic rhinosinusitis with polyposis (crswp), or without polyposis (c...

in this study, 22 patients (15-75 years old) were selected and transferred to ct scan for tumor ablation. for ablations, after prep and drep under the local anesthesia and mild sedation in proper position, small incision made and special needle inserted and guided by proper direction to the core of the tumor. then, laser probe inserted through the needle and laser energy delivered. although we ...

/\ numl..ter of studies have divided Mcxieo into rel!ions ( 1\odril!uez, 19(10; Bnssols, 1961: Wilkie, 1970: Sl'l', 1979; Seoll, ] 9H2). Wilkie (llJ70) tlivideriiVlexico into seven re~ions usin~ poverty level indicators for the years 1910-1960. For the prcsen t analysis, we consolidated l woof Wilkie's regions, the Fede~al District and the West Central Region, which completely ~rrounds the dist...

purpose: to report the clinical, confocal scan, and histopathologic features of bilateral nocardia keratitis following photorefractive keratectomy (prk). case report: a 23-year-old girl underwent simultaneous bilateral prk for myopia. on the third postoperative day, dense central infiltrates mainly involving the anterior stroma were noticed in both eyes. clinical and confocal scan features were...

errors and variations in interpretation can happen in clinical imaging. few studies have examined the biased effect of clinical information on reporting of brain ct scans. in a blinded double crossover design, we studied whether three radiologists were biased by clinical information when making ct scan diagnosis of the brain. three consultant radiologists in three rounds with at least a one-mon...