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Focal Pattern
A morphologic architectural pattern in which a cellular population is distributed in a localized or relatively uneven fashion throughout a specified tissue area; not diffuse. (NCI Thesaurus)
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A non-neoplastic, regenerating hepatocellular hyperplasia, secondary to the presence of focal vascular abnormalities in the liver.
The increase in cell numbers is localized to a few (1-5) adjacent crypts
Localized widening of the lumen of the mammary ducts.
Any limited region within a subject's image which visually stands out from its surroundings.
without nuclear atypia, which is classified with high risk disorders; can be multifocal; if greater than 50 % involvement, classify as…
Any increase in mammary epithelial cells that stands our from the general background.
