Stephanurus dentatus
Pathogenesis
The extensive migrations of S. dentatus during its parasitic phase results in
considerable damage to host organs. Skin penetration by infecting L3s may cause cutaneous
lesions and swelling of superficial lymph nodes. Liver migrations produce a marked
inflammatory reaction with eosinophilia. Repair of these lesions will result in liver
scarring and cirrhosis. Migration of immature adults through other organs such as the
pancreas may result in abscesses, fibrosis and adhesions.
Images showing liver lesions due to
migrating Stephanurus dentatus
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Normal pig liver for comparison with the other images in this
table
Image courtesy of Dr. Edward Batte |
Stephanurus dentatus - liver lesions
caused by migrating larvae and immature adults.
Image courtesy of Merial Inc |
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Stephanurus dentatus - fibrotic tracks resulting from
migrations of larvae and immature adults
Image courtesy of Merial Inc |
Stephanurus dentatus - extensive fibrosis resulting
from migrations of larvae and immature adults
Image courtesy of Dr Edward Batte |
