Objective: To evaluate the usefulness of a new liquid-based cytological procedure in a population screening program for cervix cancer. Subjects and Methods: Subjects were 1,000 women who underwent primary screening at the Kanagawa Health Service Association. The cytological specimens obtained by either cotton stick and Cytobrush® or Cervex-Brush® were processed using the Thinlayer Advanced Cytology Assay System (TACAS™), following the manufacturer’s instructions. Results: (1) Cells were evenly distributed on specimens and stained evenly; (2) shrinkage of cells was 5% based on measurement of the nuclear diameters of granulocytes in comparison with those of the conventional procedure; (3) incidences of cells that occupied the whole area, 1/20≤, 1/4≤, 1/4> of the observation fields were 58.8, 26.2, 12.0 and 3.0%, respectively; (4) number of the squamous cells in cases with 1/4> was <5,000, in which specimen cells were correctly obtained from the squamocolumnar junction except in 3 cases (0.3%); (5) bleeding at cellular sampling was 5%, but did not disturb cell analysis; (6) inflammation caused by organisms was easily diagnosed; (7) detection rate of abnormal cytology was 4.3%, including ASC-US in 2.8% and ASC-H in 0.1%. Conclusion: TACAS is a feasible and useful cytological procedure.
To determine the sonographic featuresof Yersinia terminal ileitis, we analyzed the sonograms of eight patients with acute terminal ileitis. Bacterologic or serologic confirmation of Yersinla enterocolitica infection was available in six patients.In the other two, the clinical course and radiologic findings were compatible with the diagnosis. Radiographs and endoscopy showed edematous mucosa with small elevations in the terminal ileum in all the patients. Sonograms showed thickening of the wall of the ileum in all eight patients and enlarged mesenteric lymph nodes in six patients. Although the number of the patients is small, our experience suggests that sonography can be useful for the detection of acute terminal ileitis caused by Yersinla.
Objective: To evaluate a fully automated processing system (TACAS™ Pro) for liquid-based procedures (LBPs). Methods and Materials: Materials were 3,483 and additionally 502 specimens that were taken at Kanagawa Health Service Association. Specimens obtained with a Cervex-Brush® were first smeared to glass slides using one side of the brush and then processed to TACAS Pro. Results: (1) The microscopy watching time per normal case was 3.65 ± 0.85 min in the conventional procedure, whereas in the LBP it was 1.95 ± 0.60 min, and the latter reduced workload to 53%. (2) The handling time of TACAS Pro per day was 2 h and 25.8 min. The workload at a laboratory offset it and revealed the work saving to be 63.8%. (3) Unsatisfactory rates were 0% in the conventional procedure, whereas in the LBP it was 1.88% at first. The latter rate decreased to 0.5% after system improvement. (4) Specimens which may disturb microscopy analysis were found in 1.06%, including 3 cases of possible carry-over of cells to the following slides. An additional study with the revised system confirmed no carry-over. (5) Incidences of abnormal cytology were consistent between the two methods. Conclusions: The revised automated processing system TACAS Pro is a feasible and useful LBP and reduces the workload of cytology laboratories.
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