PMID- 4052224 OWN - NLM STAT- MEDLINE DCOM- 19851219 LR - 20161020 IS - 0884-6812 (Linking) VI - 7 IP - 3 DP - 1985 Sep TI - Comparison of cytologic and acridine-orange flow-cytometric detection of malignant cells in human body cavity fluids. PG - 227-35 AB - Flow cytometrically (FCM) derived DNA and RNA profiles were studied in acridine orange (AO)-stained body cavity fluid (BCF) specimens obtained from 78 patients with various solid tissue and hematologic malignancies. The ploidy (DNA index), RNA content (RNA index), proliferative activity (% S + G2M) and DNA and RNA scattergram patterns were tested "double-blind" against the cytologic scoring of specimens as malignant, benign or reactive. It was determined that expression of an "abnormal" RNA index (greater than or equal to 2.8) and an elevated proliferative activity (% S + G2M greater than or equal to 7.4) was dependent on the presence of malignancy; 21 of 22 specimens having those abnormal indices had DNA aneuploidy and were cytologically scored as positive. The AO FCM sensitivity and specificity for detecting malignant cells (when measured against cytology scoring) were 61% and 90%, respectively, using the "abnormal" RNA index and % S + G2M cut-offs together with the cellular DNA aneuploidy marker. By supplementing the cytologic scoring with AO FCM DNA and RNA features, the sensitivity for detecting malignant cells was 94%, as compared to 72% for cytology alone. Two specimens gave false-positive FCM results: a tuberculous effusion with a tetraploid subpopulation and a reactive mesothelial proliferation that was diploid and negative cytologically. Scoring for malignancy based on the visual pattern of the DNA and RNA FCM scattergrams, while showing good correlation for aneuploid specimens, in some cases failed to identify diploid disease. The results demonstrate the usefulness of FCM DNA and RNA analysis for supplementing cytologic examination of BCF specimens for the purpose of detecting malignant cells.(ABSTRACT TRUNCATED AT 250 WORDS) FAU - Katz, R L AU - Katz RL FAU - Johnson, T S AU - Johnson TS FAU - Williamson, K D AU - Williamson KD LA - eng GR - CA16672/CA/NCI NIH HHS/United States GR - CA28771/CA/NCI NIH HHS/United States GR - CA6294/CA/NCI NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Anal Quant Cytol Histol JT - Analytical and quantitative cytology and histology JID - 8506819 RN - F30N4O6XVV (Acridine Orange) SB - IM MH - *Acridine Orange MH - Ascites/pathology MH - Cytodiagnosis MH - *Flow Cytometry MH - Humans MH - Neoplasms/*diagnosis/genetics MH - Pleural Effusion/pathology MH - Ploidies EDAT- 1985/09/01 00:00 MHDA- 1985/09/01 00:01 CRDT- 1985/09/01 00:00 PHST- 1985/09/01 00:00 [pubmed] PHST- 1985/09/01 00:01 [medline] PHST- 1985/09/01 00:00 [entrez] PST - ppublish SO - Anal Quant Cytol Histol. 1985 Sep;7(3):227-35.