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occurrence of numerous, relatively small or tiny, fairly well-circumscribed, usually spheroidal portions of tissue that manifest coagulative, caseous, or gummatous necrosis and are characteristically associated with agents that are hematogenously disseminated; frequently observed only in histologic sections, but the foci may be as large as 1-3 mm and macroscopically visible; arbitrarily, foci larger than that are usually not termed focal necrosis.
fo·cal ne·cro·sis(fō'kăl nĕ-krō'sis)
Occurrence of numerous small, well-circumscribed zones of tissue that manifest coagulative, caseous, or gummatous necrosis.
Necrosis in small scattered areas, often seen in infection.
See also: necrosis