Difference between revisions of "Ascariasis"
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(Created page with '=====Ascaris suum===== *Ascariasis *''''milk spot' liver''' *pigs *common incidental finding at post mortem examination *affected livers are …') |
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Revision as of 14:35, 7 June 2010
Ascaris suum
- Ascariasis
- 'milk spot' liver
- pigs
- common incidental finding at post mortem examination
- affected livers are condemned at meat inspection
Gross
- initial haemorrhagic tracts through the liver attributed to the migration of ascarid larvae
- later stages show fibrosis of these tracts as poorly defined, diffuse, white spots on the capsular surface
Microscopically
- initial haemorrhage and necrosis of parenchyma along the tracts
- later repair by fibrous tissue at foci
- inflammatory cell response contains many eosinophils, as well as lymphocytes and macrophages