نتایج جستجو برای: cytology
تعداد نتایج: 17726 فیلتر نتایج به سال:
Background & Objective: Biliary system lesions including ampulla of vater are considered as important diseases of gasterointestinal system because of difficult availability in endoscopy, dangers of biopsy and diagnosis in advanced stages.Regarding previous studies about the role and sensitivity of brushing cytology in diagnosis of lesions in this area and lack of serious complications in th...
The aim of the present study was to determine the value of human papillomavirus (HPV) testing in screening patients with preinvasive cervical lesions. Seven hundred thirty-four women diagnosed with atypical squamous cells of undetermined significance (ASCUS+) cervical cytology during routine screening had additional cytologic testing and HPV DNA testing within 6 months of their diagnosis, after...
Background: This study was to determine the sensitivity, specificity, positive predictive value (PPV), negative predictive values (NPV) and agreement between two methods of the stained gastric imprint cytology smears and stained gastric specimen biopsy mucosal methods for detection of H. pylori. Methods: Air-dried imprint smears of gastric biopsies from 330 patients were stained by the Grunwal...
conclusions the high prevalence of hpv in abnormal cytology underlines to the fact that the presence of hpv is a critical factor in the development of cervical cancer. the use of hpv dna techniques could actually become an effective and fast means of ascertaining the presence of hpv in abnormal cytology. results result showed a 100% presence of high risk hpv in all the samples with abnormal cyt...
This paper describes the results of transproctoscopic fine needle aspiration cytology in the diagnosis of rectal lesions. Fifty one consecutive patients referred with a presumptive diagnosis of rectal mass were subjected to proctoscopic examination when fine needle aspiration cytology, brush cytology and biopsy samples were taken. Of the 30 patients of malignancy of rectum in whom all the three...
In a prospective study we compared the diagnostic accuracy of endoscopic fine needle aspiration cytology with that of brush cytology and forceps biopsy in relation to gross tumour pattern and site in 265 confirmed consecutive cases of malignancy of the oesophagus, stomach, colon, and rectum. Aspiration cytology gave the highest diagnostic accuracy (94%), which was significantly better than that...
BACKGROUND Sensitivity of standard urine cytology for detecting urothelial carcinoma of the bladder (UCB) is low, attributable largely to its inability to process entire samples, paucicellularity and presence of background cells. OBJECTIVE Evaluate performance and practical applicability of a novel portable microfiltration device for capture, enumeration and characterisation of exfoliated tum...
BACKGROUND The study aim is to estimate sensitivity and specificity of anal cytology for histologic HSIL in analyses adjusted for the imperfect biopsy reference standard. METHODS AND PRINCIPAL FINDINGS Retrospective cohort study of an anal dysplasia screening program for HIV infected adults. We estimated the prevalence of histologic HSIL by concurrent cytology category and the associated cyto...
Imaging of biliary strictures may suggest malignancy but cytology can provide a tissue diagnosis. The aim of this study is to compare the diagnostic value of brush cytology and bile cytology. Thirty two patients (20 males, 12 females, median age 66 years, range 31-84) with biliary strictures at endoscopic retrograde cholangio pancreatography (24) or percutaneous transhepatic cholangiography (8)...
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