General Parasitology and Helminthology: Pathogenesis

Pathogenesis

PATHOGENESIS

Poor condition and high rainfalls are the predisposing factors for this condition. Following infection, the lesions initially appear as large number of small papule. Later on, they join together and form a large lesion which is covered with thick crust.
There will be inflammatory changes and pruritus. This leads to constant rubbing of the body against hard objects and the condition is aggravated by self mutilation.
Hyperkeratosis, acanthosis and alopecia may also occur. The lesions are rich in blood and lymph and readly squeezed. The lesion extends outward with the central thick dry crust.
The lesion may reach upto 25mm in dia and resolve during the dry cool season but reappear during rainy season.

Last modified: Saturday, 21 August 2010, 9:27 AM

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VPA 211: General Veterinary Parasitology and Helminthology (3+1)

Pathogenesis

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