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粟粒性肉芽肿


免疫反应低下或由广泛感染受抑时,就可能看到图示的肉芽肿表现。因为肺实质内存在大量散在的小棕褐色肉芽肿,直径约 2~4 mm ,称为粟粒性肉芽肿。
When the immune response is poor or is overwhelmed by an extensive infection, then it is possible to see the gross pattern of granulomatous disease seen here. This is a "miliary" pattern of granulomas because there are a multitude of small tan granulomas, about 2 to 4 mm in size, scattered throughout the lung parenchyma. The miliary pattern gets its name from the resemblence of the granulomas to millet seeds.

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