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Prognostic significance of DNA ploidy and proliferative index (MIB-1 index) in gastrointestinal stromal tumors. 1997

R Carrillo, and A Candia, and J L Rodriguez-Peralto, and V Caz
Department of Pathology, Hospital Universitario Ramón y Cajal, Madrid,Spain.

The DNA content and proliferative index of 61 gastrointestinal stromal tumors (GIST) were measured by image analysis and correlated with the lesion's clinicopathological features and patient's survival. DNA analysis was performed on cytospin single-cell preparations obtained from the paraffin-embedded tissue blocks. MIB-1 was the proliferation marker used on paraffin sections. DNA aneuploidy was detected in 12 tumors (18%), and high MIB-1 index (>22%) in 12 lesions (18%). DNA aneuploidy and high MIB-1 index statistically correlated with high mitotic rate (> or = 5 x 10 high-power field [HPF]) (P < .001) and with the presence of necrosis (P < .05). The patient's survival was significantly correlated with DNA ploidy (P < .01), MIB-1 index (P < .00001), mitotic rate (P < .00001), presence of necrosis (P < .0001), and size of the tumor (P < .01). Multivariate regression analysis showed that only MIB-1 index was an independent parameter in predicting the clinical outcome for patients with GIST. The mitotic rate was the only other independent prognostic factor when MIB-1 index was not allowed to enter the model.

UI MeSH Term Description Entries
D007091 Image Processing, Computer-Assisted A technique of inputting two-dimensional or three-dimensional images into a computer and then enhancing or analyzing the imagery into a form that is more useful to the human observer. Biomedical Image Processing,Computer-Assisted Image Processing,Digital Image Processing,Image Analysis, Computer-Assisted,Image Reconstruction,Medical Image Processing,Analysis, Computer-Assisted Image,Computer-Assisted Image Analysis,Computer Assisted Image Analysis,Computer Assisted Image Processing,Computer-Assisted Image Analyses,Image Analyses, Computer-Assisted,Image Analysis, Computer Assisted,Image Processing, Biomedical,Image Processing, Computer Assisted,Image Processing, Digital,Image Processing, Medical,Image Processings, Medical,Image Reconstructions,Medical Image Processings,Processing, Biomedical Image,Processing, Digital Image,Processing, Medical Image,Processings, Digital Image,Processings, Medical Image,Reconstruction, Image,Reconstructions, Image
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011003 Ploidies The degree of replication of the chromosome set in the karyotype. Ploidy
D011379 Prognosis A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations. Prognostic Factor,Prognostic Factors,Factor, Prognostic,Factors, Prognostic,Prognoses
D002455 Cell Division The fission of a CELL. It includes CYTOKINESIS, when the CYTOPLASM of a cell is divided, and CELL NUCLEUS DIVISION. M Phase,Cell Division Phase,Cell Divisions,Division Phase, Cell,Division, Cell,Divisions, Cell,M Phases,Phase, Cell Division,Phase, M,Phases, M
D004273 DNA, Neoplasm DNA present in neoplastic tissue. Neoplasm DNA
D005260 Female Females
D005770 Gastrointestinal Neoplasms Tumors or cancer of the GASTROINTESTINAL TRACT, from the MOUTH to the ANAL CANAL. Gastrointestinal Cancer,Cancer of Gastrointestinal Tract,Cancer of the Gastrointestinal Tract,Neoplasms, Gastrointestinal,Cancer, Gastrointestinal,Cancers, Gastrointestinal,Gastrointestinal Cancers,Gastrointestinal Neoplasm,Gastrointestinal Tract Cancer,Gastrointestinal Tract Cancers,Neoplasm, Gastrointestinal
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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