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Text replace - 'Macrophages - WikiBlood' to 'Macrophages'
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** E.g. tuberculosis in the ox, pig and sheep.
 
** E.g. tuberculosis in the ox, pig and sheep.
 
** Necrotic tissue is not derived  from the organ in which it occurs.
 
** Necrotic tissue is not derived  from the organ in which it occurs.
*** Formed from [[Macrophages - WikiBlood|Macrophages]] sent into the tissue in large numbers to engulf the causative organism.  
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*** Formed from [[Macrophages|Macrophages]] sent into the tissue in large numbers to engulf the causative organism.  
** The organism has defences against the enzymes of the [[Macrophages - WikiBlood|Macrophages]].
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** The organism has defences against the enzymes of the [[Macrophages|Macrophages]].
 
*** Is able to grow and multiply within these macrophages and eventually causes their death.  
 
*** Is able to grow and multiply within these macrophages and eventually causes their death.  
 
** In some granulomas, the macrophages will combine together and form giant cells.
 
** In some granulomas, the macrophages will combine together and form giant cells.