Changes

==Diagnosis==

==Diagnosis==

Ascaridia can be diagnosed by the above clinical, '''faecal examination''' or by '''post-mortem''' (PM).  Evidence of '''enteritis/haemorrhagic enteritis''' can be seen on PM; as large numbers of larvae in the histotropic phase can cause '''extensive damage to the glandular epithelium'''.  '''Adhesion of the mucosal villi''' can also be noted as a result of the proliferation of mucous-secretory cells.   

Ascaridia can be diagnosed by the above clinical, '''faecal examination''' or by '''post-mortem''' (PM).  Evidence of '''enteritis/haemorrhagic enteritis''' can be seen on PM; as large numbers of larvae in the histotropic phase can cause '''extensive damage to the glandular epithelium'''.  '''Adhesion of the mucosal villi''' can also be noted as a result of the proliferation of mucous-secretory cells.   

'''Adult worms''' can also cause damage to the epithelia as a result of '''pressure atrophy of the villi''', causing occasional necrosis of the mucosal layer. In chronic infections the '''intestinal wall''' can become '''distended''' as muscle '''tone is lost'''.   

'''Adult worms''' can also cause damage to the epithelia as a result of '''pressure atrophy of the villi''', causing occasional necrosis of the mucosal layer. In chronic infections the '''intestinal wall''' can become '''distended''' as muscle '''tone is lost'''.