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Difference between revisions of "Acute appendicitis"
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The sections show appendiceal wall with marked acute transmural inflammation and necrotic appendiceal wall with large collections of neutrophils. Several medium-sized blood vessels are thrombosed. A thick layer of neutrophils cover the serosal aspect. | The sections show appendiceal wall with marked acute transmural inflammation and necrotic appendiceal wall with large collections of neutrophils. Several medium-sized blood vessels are thrombosed. A thick layer of neutrophils cover the serosal aspect. | ||
=====Alternate - less developed===== | =====Alternate - less developed gangrenous appendicitis===== | ||
The sections show appendiceal wall with marked acute inflammation and a focally | The sections show appendiceal wall with marked acute inflammation and a focally | ||
necrotic appendiceal wall with large collections of neutrophils. Intravascular fibrin | necrotic appendiceal wall with large collections of neutrophils. Intravascular fibrin | ||
is seen in medium-sized blood vessels. Clusters of neutrophils are seen on the serosal | is seen in medium-sized blood vessels. Clusters of neutrophils are seen on the serosal | ||
aspect. | aspect. | ||
=====Early appendicitis===== | |||
The sections show appendiceal wall with focal acute (neutrophilic) inflammation and prominent neutrophil vessel margination. Muscularis propria eosinophils are present. Neutrophils are absent on the serosal aspect. | |||
==See also== | ==See also== | ||