Search results for "Urine cytology"

Nomograms including nuclear matrix protein 22 for prediction of disease recurrence and progression in patients with Ta, T1 or CIS transitional cell c…

2005

ABSTRACT Purpose: We developed and validated nomograms that accurately predict disease recurrence and progression in patients with Ta, T1, or CIS transitional cell carcinoma (TCC) of the bladder using a large international cohort. Methods: Univariate and multivariate logistic regression models targeted histologically confirmed disease recurrence, and focused on 2,542 patients with bladder TCC from 10 participating centers. Variables consisted of pre-cystoscopy voided urine Nuclear Matrix Protein 22 (NMP22) assay, urine cytology, age and gender. Resulting nomograms were internally validated with bootstrapping. Nomogram performance was explored graphically with Loess smoothing plots. Results:…

Parasite eggs in urine cytology: fact or artifact?

2008

Urine sediment cytology should be done for three main reasons: initial evaluation in symptomatic patients, pursuit of patients with tumoral pathology, and risk population screening. Nevertheless, in the course of microscopic observation it is possible to observe several elements or structures that initially seem unrelated to what we are looking for. Schistosomiasis is an endemic disease affecting humans and animals in tropical countries and the Middle and Far East, but infrequent in the developed countries. Typical eggs from Schistosoma are nonoperculate, embryonated when passed in feces and with transparent shell. The eggs are elongate and large in S. mansoni (114–175 3 40– 70 lm in size),…

Urine cytology, tumour markers and bladder cancer

1998

Acanthocyturia—A characteristic marker for glomerular bleeding

1991

Acanthocyturia—A characteristic marker for glomerular bleeding. Erythrocyte morphology by phase contrast microscopic examination (PCM) of the urine is widely employed in distinguishing glomerular from nonglomerular bleeding. The proposed percentages of dysmorphic red cells are significant for glomerular bleeding in the range of 10 to 80% in the literature, because there is no clear cut definition of “dysmor-phism.” In the present study midstream urine samples of 351 patients with hematuria (> 8 erythrocytes/μl) and of 33 healthy controls were examined. The various dysmorphic red cells were analyzed by PCM according to a detailed hematological classification. Most of the dysmorphic red cells…