mitotic activity


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Related to mitotic activity: mitotic activity index, mitotic potential

mitotic activity

Oncology The degree to which a cell population proliferates, often an indicator of tumor aggressiveness; MA is measured by frequency of cell division; it is semiquantified by counting mitotic figures/high-power field, or flow cytometry. See Flow cytometry, High power fields.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
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(2000) also found no evidence of mitotic activity during the first 48 h after transfer of Chasmagnathus granulatus, an estuarine crab, to low-salinity seawater, but could not rule out the possibility that cell proliferation might occur later in the acclimation process.
The implantation sites in the animals pinealectomizead and/ or submitted to the constant illumination showed that these presented with great gaps containing blood maternal, larger mitotic activity of the cytotrophoblast and high polyploidy degree, besides the syncytiotrophoblast presence, demonstrating to be entering in a vilositary stage, indicating, therefore a larger evolution than the sites of the control groups, which came in lacunar stage.
Caption: Figure 2: (a) Fibrous band delimiting nodular area (HE 40x); (b) globular-polyhedral epithelial elements, with a pink, foliaceus, cytoplasm (HE 200x); (c) high mitotic activity, atypical mitotic figures (HE 200x); (d) trabecular arrangement with acinar formation (HE 200x).
Unlike BCC, TE/TB lack prominent cleft retraction, myxoinflammatory stroma, significant mitotic activity, cytologic atypia, or tumor necrosis (Table).
Mitotic activity was assessed by counting MFs in five different areas in 10 HPFs in the most cellular areas; the cases were then divided into the following two groups: [greater than or equal to]10/10 BBA and <10/10 HPF.
High Power View (H & E x 400) of Compact Stromal Component showing Large Polygonal Granular Cells with Distinct Cell Boundary, Eosinophilic Granular Cytoplasm, Anisonucleosis and Mitotic Activity with Entrapped Duct lined by Single Layer Benign Epithelial Cells
No cytological atypia or mitotic activity was noted.
Anatomic site, tumor size, and mitotic activity are among the most popular factors proposed to predict GIST behavior [9, 10].
The mitotic activity was low, the cellularity was low to mild, and there were a lot of myxoid substances with aggregation of inflammatory cells around the spindle cells.
IPEH can also occur concomitantly with frank angiosarcoma, making the distinction between these two entities even more challenging, in particular if there is a lack of pathohistologic findings of marked cellular and nuclear pleomorphism, and significant mitotic activity.
Keywords: Vicia faba; Chromosomal aberratins; Mitotic activity; Ascorbic acid; Pb stress.
Examination of the specimen obtained from the small bowel by means of complete resection revealed a relatively soft submucosal mass measuring 4.5x3 cm in size with spindle morphology and high mitotic activity (Greater than 10 mitoses per 50 high-power fields).